on 21-10-2021 07:03
on 21-10-2021 08:04
Some things to try.
1 - Manually search for a different network.
2 - Reboot your phone
3 - Call customer service to check for any roaming bars.
4 - If using an iPhone, change data apn to "mobile.o2.co.uk"
on 22-10-2021 10:09