Get tech support for your O2 issues

Resolved! 2 SIMS - Transferring an existing number to the second SIM

I have just received 2 SIMs with the intention of my wife and I transferring across our existing numbers.In My O2 I see the 2 'as supplied' numbers for the new SIMs.With the first number selected (mine) I go to the transfer number option and have ent...

WiFi Dongle in Sicily

I will be in Sicily for three weeks, I normally find the o2 coverage (whoever the Italian carrier is for o2) is dreadful. I need a decent connection for meetings, can you advize me what I should do please? I presume getting a dongle would only mean g...

Resolved! Notice that something will expire on 02/07/2025.

I have had an email and text from 02 to advise:"Just letting you know your (reference)will expire on 02/07/2025."I have no idea what this is referring to. The reference number and date don't seem to tally with my account.

Can 4G calling be used on devices that were not bought from 02?

I have replaced a Samsung Tab Active 2 (which O2 told me was not capable of making 4G calls) with a Tab Active 3 (Which the O2 IMEI check said was compatible.)However, it now appears that not only can I still not make 4G calls (the option does not sh...

Resolved! NC8M9******* Code

I don't know what this number is for. It expires 2.07.2025.

Resolved! Retrieving an old 02 number

Quite a few years ago, my o2 account/phone number was paused due to an unpaid bill which I eventually settled. I know this might be a long shot but I was wondering if it's possible to get back the same number I used to have. I cannot remember my, the...

Mobile number suddenly showing as unrecognised when contacts try to leave me a voice message

From yesterday when one of my contacts calls me and tries to leave me a voice message they get a message saying that my number is not recognised. The calls come through OK if I pick up - this is only happening when people are trying to leave me a mes...

Resolved! S25 Ultra

Hi, I have an s9+ and I want to get a sim for 25 ultra, my s9+ sim doesnt have 5G and the sim doesnt work in s25 ultra, I have tried to contact O2 and they have said I cant have a sim for the S25 ultra, reason, I didnt get it from them, evcen though ...

Resolved! Removing my account

Hello guys, after how many months of non-paying the bill O2 company will withdraw the number from me?I did not pay the monthly bill from two months and I don’t want to loss my number.

Resolved! Messages received that I don't understand.

I've just received an email and text telling me "We're just letting you know your NC4S301527 will expire on 02/07/2025." I have absolutely no idea what it means.Please advise.

O2

Forum Posts