O2

Good morning.A few days ago I took out a completely new contract, with a new device. I’ve put the sim in this morning to set it up and it’s not working.It has o2 as the carrier and has full signal. But can’t make calls, receive texts etc. I’m wonderi...

I’m considering buying an old o2 contract phone for my son. But putting a payasyougo o2 sim in it. I am wondering if they still IMEI block. My worry is I buy it from this person. That they may still have a contract going, however that they could stop...