When I signed up, I sent a PAC code so that I could keep my old number.

A few days later I received the new sim card and put it in my phone.
When I tried to log in to iD mobile with my computer and set a switch date, it asks for a phone number. I put my old number in, the site says the number doesn’t match the records. When I put the temporary new number in, the site tries to send me a one time passcode. The passcode never arrives. I cannot schedule a switch because I cannot login. I also cannot log into the phone app for iD Mobile at all.
So I’m stuck, and I can’t send texts properly. 

I have restarted my phone more than once, and tried changing my password, and tried to consult live chat. It has been three days and I will be charged next month for this service that I am not yet receiving.

Please help?