SIM not working

hi. I took a SIM out with car phone warehouse. the said it is all working and I went home. I put the SIM in and it was not registered on network. I called id they said they could not find an account in my name. I went back to car phone warehouse and they gave me a new SIM with temporary number while mine transferred. I got home again not working. I call id they can't find my account. I go back to car phone warehouse. they ring there main branch and the guy said it needs activating manually. they did that and sent me home saying it will work in 2 days. 2 days later I go back and it's still not working. however I did revive an 8 digit verification code from I'd on it but all numbers I try to call at not recognised even 7777. I return to car phone warehouse. he calls id and tells them the story. id said I must register on the I'd app to finalise the number change over and it will all work and send me off again. I get home and try to register an account only the 8 digit verification number doesn't work and it won't let me hit the button to send another it just constantly says I must wait 2 min before I can do so but it just constantly says that no matter how long I wait needless to say I'm getting p****d off with this a week of 4 trips to car phone warehouse 3 calls to id and still no working SIM and can't register on the app that id said if I do that it should all work.