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Resolved! DASH_ERR04: The account number in the target address is invalid.

Hi,I've been getting this error for a long time now and I usually get around it by using different browsers and, I thought, by using the App. It seems this month, nothing seems to work. I really need a copy of my bill and I can't seem to get it onlin...

Resolved! Activating a Sim. O2 business customer

Is there any way to actually activate a sim after 8pm? I’ve gone round in circles a dozen or so times. There’s nowhere on the o2 dashboard that allows me to do it. I’m already an o2 customer, I’m just swapping the sim for a 5G one along with a new ph...

Resolved! Did o2 contact me from news@email-o2.co.uk

I have received an email from news@email-o2.co.uk regarding 3 months Disney +. Is this email from news@email-o2.co.uk legitimate or is an email from news@email-o2.co.uk a scam

Resolved! Change payment account details

How do you change the account details for payment as my elderly father has a new bank account to switch to and i want to be able yonswitch bu the website or contact number arent clear on here? Thanks

Resolved! Need a 5g payg sim

I upgraded to an iPhone 12 (bought sim-free directly from apple) from an 8 a while ago, and have been using the 4g payg sim I already had. I would like to upgrade the sim to a 5g payg but can't find any info on the (not very user friendly) o2 site. H...

I have data but 4G is not working

Hi I have data but 4G is not working on phone but working for others I am with. Is there something wrong with my phone?

I can't send texts, why?

I can not send texts ,why?

Resolved! Volt Benefits not showing up

Its been 9 days since I have taken a new account the VOLT bolt-on hasn't shown up

Resolved! Not Registered on Network

Had a new Samsung Galaxy S21 Ultra 5G phone for 3 weeks. Did SIM Swap and has been working fine until yesterday. Got the message Sim1 not allowed and when trying to make a call the message 'not registered on network'Re-seated the sim in the sim tray ...

View and download past bills

Hi!Am I going crazy? I can't find where I can view and print my older bills on the website. The latest bill is there, but where are the bills for the last few months?Thanks for your help.DC

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