I’ve had such a mission changing phones and contracts to ID from 3. I bought a new contract with ID back in June with an iPhone 15. I recieved a PAC code from 3 to keep my number after the transfer and the new phone arrived as normal. I sent ID the PAC code and when the phone arrived I fired it up and it worked straight off the bat with my old number from 3. I thought this was extremely efficient and almost unbelievably simple but after a few months I realised I was still being charged by 3 for a contract.
I phoned 3 who said that the PAC code had never been initiated and that I was still a customer of theirs! This baffled me but sure enough when I checked all the settings on my iPhone everything was still set to 3 network, even though the phone itself had come from ID, with an eSim. So recently I got a new PAC code from 3 and sent it to ID and now I have NO phone whatsoever. On the transfer day everything just stopped and now I have no phone. The automated number for ID is useless, 3 have washed their hands with me and I have no idea how to sort this all out. Can someone please advise on what the best course of action is to do next as I use my phone for work and everything so can’t live without it.