Sprint promotions not applied to t-mobile

I’m in the same boat with the Sprint Promotion not being honored.  I’ve had over 35 hours of chat and calls in the past 5-6 weeks.  I have the IMEI1 and IMEI2 of the phone I traded and sent back to Sprint for the promotion.  T-Mobile can see that it was returned but still will not honor the promotion.  I’m on hold  now for 22 minutes after calling 611.  I will now see if I can get the phone I sent in returned back to me.  The Sprint to T-Mobile transition has been frustrating and I don’t feel valued as a customer.  After 18 years with Sprint, I did not expect this to happen.  I too will continue to press the issue until I get some type of satisfactory resolution.