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Phones not connecting to network after travelling

After a two week holiday in Canada, none of our three phones on O2 would connect to the internet. To be more precise: 1. One phone (mine -- Android) would receive SMS but not send SMS, make calls or connect to 3G/4G. I called O2 tech support who got ...

Resolved! Pac code not working

Hello,I'm extremely frustrated with O2, I have been trying to port mu number for a week. My old Vodafone sim has stopped working, if i ring my old number it has o2 voicemail, but o2 don't seem to be able to update the sim. I have call customer servic...

Tx messaging problem

Hello One tx messaging wont be accepeted to go through to another 02 freinds mobile error 42 ?

SIM Inactive

Hi,I'm currently on holiday abroad and you have deactivated my SIM as part of the migration from Virgin Mobile. This is unacceptable as I now cannot use my phone when I return to the UK to order a cab from the airport or for other communications on m...

Resolved! How do I download my bill

How do I download my bill

When I have a missed call, my Voicemail message says dial 905, an invalid number

Why is it when I receive a Voicemail, the link on my phone says dial 905. When I do ring 905, it is an invalid number.I then have to ring 901, which is correct to retrieve the Voicemail message.Why does 905 show up on the original message link sent t...

Resolved! Phone calls, texts, and data don't work after trip to America.

My phone is an Oppo Reno 10x zoom and I was recently changed over from Virgin Mobile to 02. I took my phone to America. I installed the 02 roaming bundle in advance, but I couldn't call text or use data. While there I googled that American networks w...

Resolved! Issues with not being able to use my phone to ring out or receive calls

Having issues with a 2-sim Redmi 5G phone I bought last year, which won't ring out or accept calls on either sim.

Voicemails

Have followed the instructions to access voicemails and have put in pin number but nothing happens

Resolved! My o2 account

I cannot login to my o2 account via the app

O2

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