Get tech support for your O2 issues

My phone wont retain network while roaming? USING PAY AS U GO

I am abroad and have an android dual sim with O2 number. I have just discovered that the phone keeps rejecting calls either outgoing or incoming. To make a call I have to turn phone off, reconnect to a network. Make a call but then when I try a secon...

Old samsung S7 gets message about "SIM network PIN blocked. Enter SIM network PUK"

Been looking on the internet all morning and I believe I need an MCK code. I've seen @Martin-O2 @LukasB being referenced and I'm wondering if you could provide assistance. Apologies if I shouldn't @ you, and thanks for your help

Resolved! Sim invalid

I have ordered a new phone which is out of stock so I am waiting for it , now my current sim has stopped working so I have no phone can someone point me in the right direction

Resolved! Someone else is using my phone number!

Sometimes when my sister rings my phone another person picks up. Makes me think someone else has my number or something is going wrong on the O2 network. It’s so annoying trying to get ahold of O2 to talk about this issue!

Resolved! Switching from ee. Can't unlock new 02 sim

new O2 sim arrived last week and lost ee service today. New 02 sim on unlimited data, calls, texts in a virgin package fitted this afternoon. Called O2 to get the unblocking code and used this with the prefix **05* for the old Moto E5 play I use. Ala...

Ported old number from Virgin to O2 and messages don’t work

Hi, I recently renewed my contract with virgin media and they sent me an o2 sim to replace my virgin sim. Ported it over this week and it seemed to go ok except iMessage and text don’t work- it continues to say it’s been unsuccessful and that the num...

Resolved! No roaming 4g

My 4g is not working so cannot get roaming abroad

Resolved! Internet problem old number

Since joining O2 as part of Virgin contract I have had issues with trying to keep my old number which on part works although my calls receiver sees new number???additionally when I leave home I lose internet never happened whilst with Virginreally ha...

Resolved! WIFI Calling

My Galaxy S9 supports voice calls over wifi (sometimes!) but not text. Which Galaxy phones support BOTH text and voice wifi calls?

Resolved! Problems with calls from Vodaphone calls.

My partner and others have been unable to call me from their Vodaphone phone's, they can text me OK but not call. How can this problem be solved. The O2 shop are not able to help!

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