What phone?
Where abroad? (It's a big place)
Some things to try:
Check data roaming is on in phone settings
Manually search for another network
Turn off 5g
Change your data APN to "mobile.o2.co.uk"
Check with O2 whether you have a roaming bar on your account.
Do this via social mediaIf you message O2 on Facebook ( https://o2uk.co/O2CFB) , X Twitter ( https://o2uk.co/O2CTW) or Instagram ( https://o2uk.co/O2CIG) , they should be able to help
This is not O2 and we are all customers here similar to yourself and cannot answer account type queries.
