Get tech support for your O2 issues

Data roaming 4GB bolt on not working at all - mobile number***********

I bought a 4GB zone 1 data roaming bolt on (for mobile ***********) so I could get data in Australia while on holiday there. On my account, it shows I bought this on Monday 25th November - although on the account, for some reason it says it starts on...

Hello, I've been having problems with my internet access from my iphone.

Hello, I've been having problems with my internet access from my phone. I can't get through to any pages, and the email is not letting me get to any new emails that I may have. Can you help me at all, please? Jo x

Blacklist without knowledge

Over 2 weeks ago my iPhone 14 was black listed. Not lost, stolen or unpaid bills. I brought the phone outright at an o2 store in 2023. After numerous shop visits & numerous calls to o2, it’s still not been unlocked. HELP??

Battery usage

My battery usage increases significantly when I have no phone coverage any ideas why?

upgraded to a sim only contract 2 hours ago and now can't access my O2 account.

during the upgrade I selected esim transfer. I understood that the transfer would be quick, I currently don't seem to have use of the phone outside of the internet router from home

Lost Phone

Good Afternoon, I have lost my phone and need to order a new sim card and phone. To log into my O2 account it is requesting to send a text message with a pin but do not have my phone to receive it. How can I access my account? Best Regards,Andy.

Issues with delivery address

My house number is 37, however, once I put my post code in (I'm trying to buy a new sim), it only comes up with 26 and no ther house numbers

My phone say insert sim and its already in

My phone is asking to insert sim and it's already in . Could I have a replacement sim please.

A12 not getting 4G in Mobile AL USA

Hi, I'm presently in Mobile Al, USA. I have an A12 Samsung, connected to T-Mobile. I can call out (UK) and have very very slow " E" data. I can't seem to connect to 4G. Any ideas how to do this or what setting to change. I 've tried the reboot, on-of...

Wi-fi calling

Wifi calling no longer shows under connections

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