The short answer
How an internet complaint actually gets resolved
When your internet drops out, your bill spikes or your connection has been promised for three weeks and still has not arrived, the instinct is to ring your provider and complain. That is the right first step, but it is also where most people get stuck: they sit in a queue, get a vague promise, then give up and live with the problem. The thing almost no one realises is that the balance of power flips the moment you mention the Telecommunications Industry Ombudsman, because the retailer (not NBN Co) owns your account and pays a fee to the TIO for every case referred. This page explains how the complaints system actually works, why the escalation ladder matters more than any clever phone script, and the exact sequence that turns a stalled complaint into a resolved one.
Here is the core takeaway in one line: complain to your retailer first and get a written complaint reference number, then if it stalls past 15 business days, escalate to the TIO, because the TIO charges the retailer a per-case fee that makes ignoring you suddenly expensive. That single idea fixes the two things people get wrong: they complain to the wrong party (they ring around looking for NBN Co, which does not deal with consumers), and they rely on persistence or a clever script when what actually moves a retailer is a documented complaint plus a credible path to the Ombudsman. Knowing the ladder is worth more than any phone technique.
Reframe the assumption: a complaint is not a favour you ask for, it is a process with deadlines the retailer is bound to. The TIO is not a last resort for desperate people; it is the lever that gives your complaint teeth from the very first call, because the retailer knows where the ladder ends and what each rung costs it.
The blind spot
Why most complaint advice leaves you stuck in the queue
Most "how to complain about your internet" guides do one of three unhelpful things, and each one keeps you exactly where the retailer wants you: politely waiting.
First, they treat it as a customer-service problem, not a process. The advice is to stay calm, be persistent and ask nicely for a supervisor. That is fine etiquette, but it ignores that you have enforceable deadlines and an external Ombudsman behind you. Persistence without the ladder just means you call back more often into the same queue.
Second, they send you chasing NBN Co. People with a connection fault or a delayed install try to complain to NBN Co directly and hit a wall, because NBN Co is a wholesaler with no consumer relationship. The complaint has to go through your retailer, which owns your account and is the only party the Ombudsman can hold accountable. Aiming at the wrong target burns days.
Third, they frame the TIO as a last resort for hopeless cases. In reality the TIO is the mechanism that gives an ordinary first-call complaint its leverage. You do not wait until you are at your wit's end to "use it"; you keep the records and the deadlines from day one so that escalating is a small, credible next step rather than a dramatic final one.
How the complaints system is built, piece by piece
Expert analysis: why the TIO is the lever that moves a retailer
Your retailer owns the relationship, even for NBN faults
The NBN is wholesale infrastructure. NBN Co builds and runs the network, then sells access to retailers (the industry calls them RSPs, or Retail Service Providers) such as Telstra, Optus, Aussie Broadband, TPG and dozens of smaller telcos. You buy from the retailer, you pay the retailer, and the retailer is the party accountable to you. So even when your problem is plainly an NBN access issue, a delayed install or a line fault, your retailer is the one obliged to chase NBN Co and resolve it for you. This is why every complaint, including NBN connection and fault complaints, goes to your retailer, never to NBN Co.
The TCP Code gives the retailer hard deadlines
Complaints are not handled at the retailer's leisure. Under the Telecommunications Consumer Protections (TCP) Code, overseen by the Australian Communications and Media Authority (ACMA), your retailer must acknowledge a complaint promptly, resolve a non-urgent one within 15 business days, implement any agreed fix within 10 business days, and tell you before it misses a deadline. Urgent matters, a total loss of service or a complaint tied to financial hardship, must move faster. These are obligations, not courtesies, which means a missed deadline is itself a fact you can point to, not just a frustration.
The TIO's funding model is the hidden incentive
Here is the part that explains why escalation works. The Telecommunications Industry Ombudsman (TIO) is funded by the industry it oversees: when a consumer lodges a complaint, the TIO charges the relevant retailer a handling fee for that case, and the fee escalates the longer and further the matter goes. So a complaint that costs the retailer nothing to leave sitting in a queue suddenly carries a direct cost the moment it reaches the TIO. The retailer's rational move flips from "delay and hope they give up" to "resolve this before it gets expensive". You are not appealing to goodwill; you are changing the maths.
Why the reference number is the keystone
The whole ladder rests on one small artefact: the complaint reference number. It is the timestamp that proves a formal complaint was made and the 15-day clock started. Without it, a retailer can later treat your calls as general enquiries that never triggered the process, and the TIO has nothing to anchor a timeline to. With it, you can show the complaint exists, when it started and that the deadline passed. That is why getting the reference number in writing on the first call matters more than anything you say during it.
Interactive explainer
Complaint escalation pathfinder
Pick your issue and how long it has been unresolved. It tells you the correct next step on the ladder, what evidence to keep, and what remedy you can realistically claim. Every path it shows also appears in the static table below.
Find your next move
General guidance only, not legal advice. Always confirm the current process on the TIO website before you lodge.
Anything urgent apply?
Your next step
Assumptions: non-urgent complaints follow the 15-business-day resolution window; urgent matters (no service, hardship) escalate faster. Sources: Telecommunications Consumer Protections (TCP) Code, ACMA complaint-handling standard, TIO published process. Remedies are indicative, not guarantees.
| Step | What you do | Standard timeframe | Keep this evidence |
|---|---|---|---|
| 1. Formal complaint to retailer | Phone, email or web form; ask for it logged as a formal complaint | Acknowledgement, usually same day | Get the complaint reference number in writing. |
| 2. Internal resolution window | Retailer investigates and proposes a fix | Up to 15 business days for non-urgent | Keep dates, times, names and every reference number. |
| 3. Delay notification | Retailer must tell you if it will miss the window | Before the deadline passes | A missed window is itself grounds to escalate. |
| 4. Escalate to the TIO | Lodge online or by phone once unresolved or overdue | TIO refers it back to the retailer first | Quote your retailer reference number and the dates. |
| 5. TIO-referred resolution | Retailer must respond directly to you | Usually 10 business days | This is where stalled cases suddenly move. |
What this looks like in real homes
How the complaint trap plays out for real households
The mechanics above are not theory. They are exactly how Australian households either get stuck for months or get a result in a fortnight:
The install that slipped three times
A renter is promised an NBN connection in two weeks, then it slips, then it slips again, with the retailer blaming "NBN delays". Chasing NBN Co goes nowhere because it does not deal with consumers. The moment the renter logs a formal complaint with the retailer, gets a reference number and notes the missed dates, the retailer escalates the order itself and the connection lands, because the alternative is a TIO case it has to pay for.
The speed problem that needed evidence, not arguments
A household on NBN 100 sees evening speeds crawl. Months of phone arguments achieve nothing. Once they save dated speed tests over the wired connection across the 7pm to 11pm peak and attach them to a formal complaint, the retailer can no longer wave it away, and offers a move to a cheaper tier with a partial refund rather than face the Ombudsman.
The billing error that quietly recurred
A customer is overcharged after a plan change and is told each month it is "fixed", yet it keeps recurring. Treating it as a one-off enquiry let it drift. Logging it as a formal complaint with a reference number put it on the 15-day clock, and the credit appeared once the retailer realised the calls were now a documented complaint, not casual chatter.
The dropout dispute that the TIO settled
A family endures daily dropouts that the retailer cannot fix within the window. They escalate to the TIO with their reference number and a log of the fault testing. The TIO refers it back, the retailer responds directly within days, replaces faulty equipment and credits the lost weeks. The fix was the same all along; the leverage is what changed.
The insider insight
The threat to escalate is worth more than the escalation itself
Here is the part most complaint guides never say out loud. You rarely need to actually run a TIO case to the end; you need the retailer to believe you will. Because the TIO bills the retailer per case and the cost grows the longer it drags, a credible, documented intention to escalate is itself the lever. A customer who has a reference number, a clean log of dates and a calm sentence about taking it to the Ombudsman if the deadline passes is far more expensive to ignore than to fix. Most stalled complaints resolve at exactly that moment, before any case is ever lodged.
The non-obvious truth: a complaint has two values, the fix you want and the cost you can impose, and only the second one moves a slow retailer. The households that get results fastest treat the reference number and the deadline as their real tools, and the TIO as the quiet backstop that makes both matter. You do not have to be louder; you have to be on the record and clearly willing to escalate.
The practical consequence: never rely on persistence alone. Get the complaint logged, hold the deadline, keep the paper trail, and let the structure of the system do the persuading for you.
Grounded in the analysis
What you should actually do to get a complaint resolved
Specific moves that follow from how the complaints system is built, not generic advice.
Lodge a formal complaint and get the number
Contact your retailer and say clearly that you are making a formal complaint. Ask the agent to read out the complaint reference number and write it down with the date. That number starts the 15-business-day clock and is your proof the process began.
Build a tidy paper trail
Keep dates, times, names and what was promised on every contact. For speed, save dated wired speed tests across the 7pm to 11pm peak. For billing, keep the bills. For a connection delay, keep every promised date. You do not send it all up front, but you have it ready.
Hold the deadline, then escalate to the TIO
If the retailer misses the window or the fix fails, lodge with the TIO, free, quoting your reference number and dates. Even saying calmly that you intend to escalate often resolves it, because a TIO case costs the retailer a fee it would rather avoid.
Gathering evidence for a speed complaint? Run our internet speed test first, and if your line keeps falling short, check whether a different NBN tier or retailer would fix it.
Current figures, last updated 2026-06-16
Indicative Australian complaint-process figures for 2026. Sources: the Telecommunications Consumer Protections (TCP) Code, the Australian Communications and Media Authority (ACMA), and the Telecommunications Industry Ombudsman (TIO). Timeframes are the standard obligations; urgent complaints move faster.
The bottom line
Why the ladder beats the script every time
A polite, persistent phone call is a fine start, but it is not what resolves an internet or NBN complaint. What resolves it is a process: a formal complaint logged with a reference number, a deadline the retailer is bound to, a tidy record of what happened, and a free, independent Ombudsman that the retailer pays to deal with. Because your retailer owns the relationship even for NBN faults, and because the TIO charges it per case, a documented complaint and a credible path to escalate change the retailer's incentive the instant you make them clear. Aim at the right party, keep the evidence, hold the deadline, and you will spend far less time in the queue and far more time with the problem actually fixed.
Common questions
A Selectra expert answers your complaint questions
Complain to your retailer first, and make sure it is logged as a formal complaint rather than a general enquiry. Ask the agent to read you the complaint reference number and write it down, because that number is proof the clock has started. State the problem, the impact and the specific outcome you want (a credit, a fix by a date, a plan change). Keep a short log of every call: the date, the name of the person, what they promised and the reference number. If the retailer does not resolve it within 15 business days, or misses a promised date, you have met the precondition to take it to the Telecommunications Industry Ombudsman.
No, not as a consumer. NBN Co is the wholesaler that builds and runs the network; it sells access to retailers (Telstra, Optus, Aussie Broadband, TPG and dozens of others) and has no retail relationship with you. Even when the fault is clearly on the NBN access network, your retailer is the party accountable to you and the one that must lodge faults with NBN Co on your behalf. That is actually good news: it means you only ever deal with one party, and that party answers to the TIO. So direct every complaint, including NBN connection and fault issues, at your retailer.
The Telecommunications Industry Ombudsman is the free, independent dispute-resolution scheme for phone and internet in Australia. The reason a credible threat to escalate works is structural: when you lodge a complaint, the TIO charges the retailer a handling fee per case, and that fee rises if the matter is not resolved quickly. So a stalled complaint that costs the retailer nothing to ignore suddenly costs it real money the instant you involve the TIO. You do not need to be aggressive; you simply note, calmly and in writing, that you intend to take the matter to the TIO if it is not resolved by the deadline.
Under the Telecommunications Consumer Protections (TCP) Code, your retailer should acknowledge a complaint promptly, resolve non-urgent complaints within 15 business days, and implement any agreed fix within 10 business days. Urgent matters, such as a total loss of service or a complaint tied to financial hardship, must be handled faster. If the retailer is going to miss a deadline it is required to tell you before the deadline passes. A missed acknowledgement, a missed deadline or a missing delay notice are all valid reasons to escalate to the TIO.
The strongest case is a tidy paper trail. Keep your complaint reference number, the dates and times of each contact, the names of the people you spoke to and what they promised. For a speed problem, save dated speed-test results run over the wired connection at several times of day, especially the 7pm to 11pm peak. For a billing dispute, keep the bills and any plan or contract details. For a connection delay, keep the original promised date and every revised one. You do not submit all of this up front, but having it ready makes the retailer take the complaint seriously and gives the TIO a clear record if it goes that far.
It depends on the issue, but remedies are usually practical rather than punitive. For an outage or a connection that never delivered, expect the fault fixed and a credit or refund for the time you had no usable service. For a speed problem where the line cannot reach the advertised speed, you can ask to move to a lower, cheaper tier with a refund of the difference, or to exit the contract without penalty. For a billing error, expect the incorrect charge reversed. The TIO can require the retailer to fix the problem, apply a credit or release you from a contract; it is not a court and does not award large damages, but it does make retailers act.
