I just received my iPhone 6+, and I'm trying to get the SIM card registered so I can use my phone. In the past, I thought it was all done automatically, but it is not working. My new phone will not register on the network. The instructions that came with the phone said to call some automated system to register. I did that, entered my numbers, and then it told me to dial *228 on my phone and press option 1. When I dial *228 on the phone, it says "that number is not allowed". Is anyone else having trouble getting their new phone's SIM card registered?