I haven't had signal for around 2 days and can't log in without you texting me a passcode

[gadfly]

I'm trying to get in touch with you about not having any phone or 4/5G signal for two days, but I can't get into my account to talk to you unless you send me a passcode by text, which is impossible to receive as I haven't had any phone signal for two days.

[Enlli]

We are all customers here so can't help

Have a look.at these guides before contacting O2, 

Guide: Is the network down for me or everyone?

Guide: How can I sort out my network issues? 

Guide: How to find help & contact O2 

[Oxonian]

I would like to highlight the usefulness of this app @gadfly :-

My Network App - Find Out More About Your Network Coverage | Apps | O2

https://www.o2.co.uk/apps/my-network

With the My Network app you can keep an eye on your coverage, wherever you are. Download the app and you’ll be able to:

• check the status of our network in your area – you don’t even need to enter your postcode
• test your network speeds
• report any issues with your service.