They must not have put your new IMEI number into the system when they replaced your iPhone. I would go back to the Apple Store with any paperwork you have for the upgrade program and see if they can resolve the issue for you.
Thank you for your help. I think I will do exactly that, go to the Apple Store in town and talk to them directly.
I tried that and I put in the serial number and the last four IMEI Number and it tells me that I am not yet enrolled . But I have to be because I enrolled in it when I purchased my new iPhone 7 Plus a few months ago and currently making payments. The only thing is like I said before something happened to that iPhone and through Apple care plus which is part of that they replaced my broken phone with the new one .
Check on their page: iPhone Upgrade Program - Apple
iPhone upgrade program
