Mobile data not working

[Sleepysloth2011]

Hi! My mobile data isn't working. Although I get signal bars and the 4G logo appears and I am able to receive text messages, I cannot use data to browse the web or apps or use iMessaging. I have reset network settings on my phone and tried the SIM in a different phone but the result is the same. The coverage checker says 4G should be available. Wifi works fine.How can I get this fixed, please? It's been like this for a week, no billing issues.

[pgn]

Help for this is all in here, @Sleepysloth2011 

Guide: How can I sort out my network issues? 

Did you swap the other phone's SIM into yours to check, perchance?

Otherwise, contact O2 Guide: How to find help & contact O2 has all the ways. Good luck!

[Oxonian]

It is mentioned @Sleepysloth2011 in the guide that has already been provided to you, but I would urge you to take a look at :-

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

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

Understand your network coverage
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.
It’s simple to use and means that you can check the network without having to visit the main site or even enter a postcode.