O2

Hey, last week I made the switch from giffgaff to o2 (payg, rolling monthly). I entered my PAC code on the o2 website to bring my original number to o2. On Friday morning the switch was partial, so I lost the service in giffgaff (expected), but my or...

How do I enable wifi calling? I can't see it in the phone options with the o2 card (it is with other cards, e.g. Three). I do not see this option in My O2 app either. I called the support line on 4445 many times and spoke to about ~5 people. One want...