Slamming: moved to another provider without your consent? How to reverse it

Slamming: moved to another provider without your consent? How to reverse it

One day a welcome letter arrives from a phone company you've never dealt with, or a text confirms a switch you never asked for. Your line still works, but you're no longer with the company you thought you were with. That has a name: slamming, moving your phone, broadband or energy account to another provider without your consent. It's against the rules, it's more common than you'd think, and it can be fixed if you act quickly.

How do they switch my provider without me noticing?

It almost always starts with a pushy sales call. The usual pattern:

1. They ring pretending to be your current provider ("we're calling from your network, we're going to upgrade your plan") or posing as an independent price-comparison service.
2. They ask you to confirm details "to verify the offer": name, date of birth, address, sometimes your IBAN or a code or account number from a letter.
3. With those details and a recording of you saying "yes" to vague questions, they put through a sign-up or a switch to another company, which then presents that recording as your supposed consent.

Sometimes there isn't even a call: it's enough for your details to have leaked (data breaches, online forms, directories) for an unscrupulous salesperson to process the switch and pocket the commission. That's why slamming often goes hand in hand with the "yes" scam: a recorded "yes" signs no contract, but they use it as window dressing to pretend you agreed.

How do I know I've been slammed?

The warning signs:

• A welcome letter or email from a company you never signed up with.
• A switching or porting text you don't recognise. Don't ignore it: it's proof that something is in motion.
• Your provider stops billing you, or a final bill arrives with an "early termination" charge.
• Changes to your online account, or you suddenly can't log in with your usual details.
• The line works but the provider has changed: on a mobile you can see the network name in your settings; for electricity and gas, it shows up on the next bill.

Golden rule: any message about a switch you didn't ask for deserves an immediate check. Ring your provider (on the official number, one you looked up yourself, never the one in the suspicious message) and ask whether anything is pending on your line or on your electricity or gas account.

What do I do to reverse it?

Act in this order, and in writing whenever you can:

1. Contact your original provider and explain that you never authorised the switch. Ask them to stop it if it's still going through: the sooner you ring, the better the chance of catching it before it completes.
2. Complain to the company that signed you up, in writing, and ask for a complaint reference number. Demand that the sign-up be cancelled with no penalty and that everything charged be refunded. Key point: ask them to show proof of your consent, such as the recording they claim to have or a signed contract. You shouldn't have to prove that you never signed up.
3. Don't pay penalties for a sign-up you never made. If they threaten debt collectors or your credit record over a bill for a contract you never signed, say so explicitly in your complaint and keep a copy. Wrong information on a credit record can be challenged too.
4. If they don't reply or they reject the complaint, escalate once you've been through the company's own complaints process: for phone and broadband, go to ComReg, the communications regulator; for electricity and gas, go to the Commission for Regulation of Utilities (CRU). Keep all paperwork and complaint numbers.
5. If they used your details to impersonate you, also report it to the Gardaí at your local Garda station. A Garda report strengthens any later complaint.

If the switch came with charges on your bank account, contact your bank as well and ask what can be done to stop them and get the money back.

How do I protect myself so it doesn't happen again?

• Don't confirm personal details over the phone to whoever rings you. Not your name, date of birth, address or bank details. If they say they're your provider, hang up and ring the official number yourself.
• Answer with "Hello?" rather than "Yes?", and don't give one-word answers to closed questions from strangers.
• Check your bills every month: electricity, gas, phone, broadband and bank statements. Slamming shows up on a bill before anywhere else.
• Keep your contact details up to date with your providers and turn on any account alerts they offer, so a switch notice reaches you in time.
• Report the number that rang to sign you up: these campaigns target thousands of people, and each report the number builds up in the spam numbers directory warns the next person. If a company keeps ringing you with sales calls you never agreed to, you can also complain to the Data Protection Commission.

Frequently asked questions

Is slamming the same as a switch I asked for and then regretted? No. If you asked for the switch and changed your mind, you have a 14-day cooling-off period for contracts made at a distance (by phone or online). Slamming is a switch you never asked for: it isn't about cancelling, it's about challenging a contract you never consented to.

They say they have a recording of me agreeing. Am I bound by it? Not automatically. They have to show informed consent: they identified themselves clearly, explained what you were signing up to, and you accepted without any ambiguity. Ask for the recording and listen to it: many fall apart because the information was misleading or the "acceptance" was ambiguous.

Can I go back to my previous provider? Yes. Ask explicitly that the company which switched you without consent covers any cost of putting things back the way they were.

How long does it take to sort out? Going directly to the company usually takes weeks. A complaint escalated to a regulator can take months. That's why you should start straight away and keep every piece of paper: time is only on your side if there's a paper trail.

In short

Slamming feeds on two things: your details and your inaction. Deny it the first by confirming nothing over the phone, and deny it the second by acting as soon as you see a sign: stop the switch, complain in writing and ask for proof of consent, and escalate to ComReg or the CRU if needed. Check your bills every month and report sales numbers in the NoCall spam numbers directory. You'll find more step-by-step protocols in our guides.