You can only use the payment options shown.
You can not use a payment option that is not there.
The giftcards shown can be used. If Amazon is not shown you can not use it. The list is what you are looking at.
There is no official list. Payment options are dependant on the country you live in and the platform you use. If the option does not show for you, you can not pay that way.
You are looking at a list of valid gift cards in your situation.
You can keep asking the same over and over again, but I can not give you any other answer.
These are my payment options
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I have totally different payment options than you.
I can't use an Amazon Giftcard, simply cause the option is not available.
There is no list and there is no right answer to your question other than you can only use what you can see.
When looking at the payment options in game, the Gift Cards option only show CVS and Dollar General in the Icon in the payment options list. Can US Amazong Gift Cards be used?
what is amazon pay? Can you use amazon gift card through that?
In US, depending on what zip code you put, different options show up. Amazon isn't one of them.