on 28-05-2020 09:35
on 28-05-2020 10:01
Bit more info needed please? Changed from what to what?
If this is something which has happened without your knowledge, then you need to contact O2.
All numbers in this guide. Guide: Coronavirus Community Help and Support
The number ending 4005 in the above guide is the best one to try.
Veritas Numquam Perit