Why is data being used when I dont even use o2 sim

[MyName2]

Why have I received an email saying...

Mobile number (number removed) 

We're just letting you know that (number removed) has now used 80% of its inclusive data, which resets on 14/05/24. To stay on top of your bill, go to My O2 (via the app or http://www.o2.co.uk/myo2).

Thanks,
O2

I don't even use this sim... it came with Virgin Volt... the sim is not even in a phone.

[Cleoriff]

@MyName2 

Looks like you should contact the sales team as they can help with that – message them on Social Media if that works best for you -on Facebook ( https://o2uk.co/O2CFB) , Twitter ( https://o2uk.co/O2CTW) or Instagram ( https://o2uk.co/O2CIG)

Or you can call them on 0800 081 0255

Guide: How to find help & contact O2 

[Bambino]

@MyName2 This is not O2. This is a customer community. You need to speak to O2:

Re: How to find help & contact O2: A Guide - O2 Community