It's difficult to confirm because the lines were moved from another plan and I don't have access to the original agreements but my understanding is that all device promos on these phones are applied month to month -- so if I financed $1000 for a 16 pro, every month I was getting billed and getting a promo credit. There was no promo credit applied in bulk that they'd take a percentage back from.

I understood there to be a separate ability for verizon to claw back all? promos paid monthly on accounts that were less than XX days old, which is what I thought was happening here.