Get tech support for your O2 issues

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!

Resolved! How do I change billing address?

Can't seem to find how I can change my billing address on My02. It just sends me round in circles. Ideally I'd like to speak with a person, but can't find contact numbers.

No signal for 6 days since switching to O2

Have anyone experienced similar like this - having no signal, no network, no calls and text since switching to O2 for more than 5 days?I am on my 6th day of this. Trying to get in touch with all support teams and also popped into the shop, but still ...

5G no internet but did not drop down to 4G that had a service

I was put last night in Nottingham. My phone and tariff has 5G. It said I had a 5G service but I got no internet. My husband who is with EE was happily using 4G next to me. I checked today on your sight at postcode (NG1 5AL)I was at has no 5G service...

Number Porting blunder by 02

Being an existing customer of O2, took an additional contract for my wife and gave the PAC & the number I wish to port on the NEW contract at the time of purchase.The new phone and sim arrived, I put the sim in the new phone and waited for the SIM to...