Details may be a little sketchy but... it seems in the end, it was my wife who swooped in to save the day with her own idea—first use a credit card to setup a payment plan. After that, my son was able to redeem his gift cards (without making any payments from the credit card). And at last he was able to make the game purchase and happily go about playing Minecraft.

Details may be a little sketchy but... it seems in the end, it was my wife (my family's resident online shopping expert) who swooped in to save the day with her own idea—first use a credit card to setup a payment plan. After that, my son was able to redeem his gift cards (without making any payments from the credit card). And at last he was able to make the game purchase and happily go about playing Minecraft.