topic Re: SIM issues. No calls or texts. Number no longer recognised in Pay Monthly

SIM issues. No calls or texts. Number no longer recognised

Dgraffham — Mon, 30 Jun 2025 21:33:58 GMT

I’ve just found out today when leaving my house and disconnecting from my Wi-Fi that my SIM card can no longer:

• Make or receive calls

• Send or receive text messages

• Use any data

Using my Wi-Fi at home I’ve been able to ask family to try phoning my number, and it says “the number you have called has not been recognised”, I’ve had this number on contract, since 2006.

I can’t sign in to My 02 as I cannot receive the verification SMS. When I speak to support they ask me to phone a number or 202 (I can’t make calls), or for more support to use the app. I can’t sign into My 02 on the app either due to not being able to receive text messages.

Ive tried pressing the “I want to cancel my contract” buttons hoping I could speak to a human, I can’t speak to anyone.

Does anyone know what causes this or what I can do about it, given I have no way of communicating them, other than using my Wi-Fi?

Re: SIM issues. No calls or texts. Number no longer recognised

MI5 — Mon, 30 Jun 2025 21:48:18 GMT

@Dgraffham

Phone or sim failure.

Go in store with photo ID for a new sim and they can check your phone too.

Re: SIM issues. No calls or texts. Number no longer recognised

Dgraffham — Mon, 30 Jun 2025 21:58:31 GMT

Something else I should have added.

My mobile data is showing that I have 3G data available, and it does sort of work very, very slowly, now and then.

I have spoken to some other people with the same issues on another forum. So it sounds like it’s not just me, hoping it resolves

Re: SIM issues. No calls or texts. Number no longer recognised

MI5 — Tue, 01 Jul 2025 06:43:54 GMT

@Dgraffham

If you suspect network issues, you can check, track and report here https://www.o2.co.uk/apps/my-network

Re: SIM issues. No calls or texts. Number no longer recognised

Dave-O2 — Wed, 02 Jul 2025 08:47:07 GMT

Morning @Dgraffham

I'm just checking in to confirm if this has been fixed.

If the answer is no and you have an eSIM, please drop me a PM with your mobile number.