For the trade ins. So this won’t benefit you as once you transfer to BYU your line will no longer qualify for the monthly rebate on the phone.
You also have to pay your phone off to be on BYU plan. Or use the BYU phone plan which is a great deal.
I would pay off the phones and sell them, get new phones through the BYU plan $35 a month vs $18. You have a 2 year phone payment so 17x24 is $408 for the phone.
It has been a year since I did this review in detail so I could have some small details off but this should mostly be accurate.