I am into a situation where I am unable to get my phone unlocked even after paying full amount. I bought iPhone 7 from xfinity and got it activated on xfinity services. Later I used xfinity sim in another unlocked iPhone 6s which I bought from T-mobile for sometime. At this time IMEI of 6s got registered with Xfinity. Now when I again used iPhone 7 with xfinity SIM, it is not getting registered with Xfinity. Though I am able to use xfinity services, but IMEI of iPhone 7 is not showing up in their system. This is the reason they are not able to unlock my iPhone 7. I tried network reset, restarting my phone. Still not updated. Any help is greatly appreciated.