^ Like I previously stated... I called the Trade In Device over 10 times in 4 months via their 8004168894 phone number and each person I spoke to kept assuring me I will receive the correct credit amount in the next billing cycle and to just wait.  Never happened and it took me cancelling my account to finally speak to a representative that actually followed up personally and texted me with updates.

After 4 months I received the correct bill credits thanks to the CANCELLATION dept.

Here's how your bill should look like once you get the correct promo trade in credit applied

669.99 Promo Trade Credit 1 of 24 -$28.06 669.99 Promo Trade Credit 2 of 24 -$27.91 669.99 Promo Trade Credit 3 of 24 -$27.91 669.99 Promo Trade Credit 4 of 24 -$27.91