Just so it's out there, When the Galaxy S7/S7EDGE as released I had this happen to me as well.
I never even got tracking information until AFTER I received the phone and then when I did get the tracking it said processing for about two days (mind you this was after the phone was in hand). So it could be that UPS systems are very slow at updating. Especially since this was shipped over the weekend. That could make the systems update even slower. T-Mobile's website does even say to give UPS 2 days to update their tracking information.
I never even got tracking information until AFTER I received the phone and then when I did get the tracking it said processing for about two days (mind you this was after the phone was in hand). So it could be that UPS systems are very slow at updating. Especially since this was shipped over the weekend. That could make the systems update even slower. T-Mobile's website does even say to give UPS 2 days to update their tracking information.