I've apparently run out of Data (20GB) but O2 usage says 7GB??

[FakeRooster]

I've never used more than 10GB of data on my phone, I have a limit of 20GB on my tariff. I'm not using an Iphone which I know has had issues with this sort of thing. I got an 80% warning text which I thought was odd since I never used more than 10GB of data and then today apparently i used 4GB in a day which is incredibly unlikely.

I checked past usage and even for this month I've only used 7GBish. I don't understand why there are two different numbers here. I've tried to contact O2 but to no avail so far, have other people experienced this?

I'm on a Pixel 7 Pro, I've had this tariff for a few years now with no issue.

[MI5]

@FakeRooster 

Might just be a system glitch esp if your MyO2 is only reporting 7gb.

Try O2 on the socials if no luck on phone, or the support tab for chat in the MyO2 app.

Guide: How to find help & contact O2