O2

My phone number is no longer recognised. I still get a data connection but I don’t seem to have a phone number anymore. I’ve done a sim swap and tried the SIM card in another iPhone but I still can’t make/receive calls or text messages. Nobody at o2 ...

My phone number is no longer recognised. I’ve done a sim swap but it is still not working. I still get 4G so I can use data but I can’t receive calls or text messages.