Could it be that your data allowance has been exhausted, @nix77? The MyO2 app is one way to check.
Info on the My O2 app is here https://www.o2.co.uk/apps/my-o2
Or in PAYG you can text BALANCE to 20202
Or you can go to your phone settings and check 'data used'. This will also show you how much is left. Or when you used the last Megabit...
Hi @nix77 did you manage to find out what the issue was?
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