Carrier Lock: SIM Locked

I transferred my line today to a new carrier. I made sure that the number lock was off prior to requesting PIN from Xfinity. I received the PIN and made the transfer. When attempting to scan the eSM from the new carrier - I was receiving a message that it cold not be done. I looked in the  iPhone settings and noticed that the SIM was still locked. How do I get this rectified ASAP?