06-10-2020 22:32
06-10-2020 22:37
You need to call O2 to enable it on your account Guide: Coronavirus Community Help and Support
Then turn it on in your MyO2
06-10-2020 23:40
06-10-2020 23:41
07-10-2020 06:50
07-10-2020 06:50
Unfortunately, that is the process.
Further help here and check that your phone is compatible https://www.o2.co.uk/connectivity/wifi-and-4g-calling