I purchased my son an iPhone 13 Pro around Thanksgiving 2021 on a payment plan with a Iphone 8+ trade in. End of December 2021 I paid the phone off in full and now don't see any credits applied to my January bill $3.60x29 months = $104.40. T-Mobile store rep said when we purchased the phone we can pay off early and still receive the credits, which we did.
We bought our daughter an iPhone 13 yesterday with the trade of an X and the upcoming billing shows no remaining credits for my sons phone just the normal monthly billing cost plus the installment plan for her phone.
This is how I discovered the problem
Am I out the $104.40 credits for the Trade?