I don't know if can repeat this but maybe not.
Raise has added a lot of $1.00 Amazon gift cards to their shop now and you can stack them together in an order totaling $5 and by using your $5 referral credit when you create an account.
GCS -
https://www.raise.com/buy-amazon-com-gift-cardsno idea if foreigners can benefit, but you are free to try.
Don't use VPN or VPS cause it's doesn't work? maybe try.
Goodluck to all.