Amazon can't buy psn card?

Hello So I wanted to buy psn on amazon buy However, I can only get this error message could someone help me or say what I should do?

Could you buy some on MMOGA. But they are a little more expensive, I think.

Wanted to buy at amazon because I have a coupon

Oh, right. Yes, according to the photo, you should specify a location if you have not already done so.

I already have but this message comes anyway

So I still have an idea: Try it on the PC, sometimes it works.

Is there… You still have to deposit an address.

First of all you should be 18. Before that, you can't buy anything from Amazon, even if it's always suggested by all the other teenagers here. If you do not want to wait, have your parents order you. They are allowed to do that and also know how to do it.

Everything else will be displayed in the "error message".

As far as I know you can on Amazon no coupons or credit cards with Amazon credit / vouchers pay.