It's my payment protection plan
I used it across many different venues with amazon.  With some of the gaming apps on my firetv. To purchase online at amszon.com .  To maintain things I've subscribed to with my prime account.  And last but not least as a back up to any purchases. Ie: kind of an overdraft protection when I maybe miscalculated credit available.  And it is so easy to reload from any of my resources of cash or credit.  With instant access.
Rating: 5 stars