My normal data allowance is 750mn/mth. Why wenn I buy a data bolt on (of 500mb) does it seem to get used up in minutes...but my useage of my phone has not changed?
It shouldn't do as data and calls are completely separate. I'd give customer services a call to check what's going on http://www.o2.co.uk/contactus
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Currently using: Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)