Subscription options

I wanted to say I love this site. The control the user has is very impressive and the results are great! I want to subscribe, but can’t use my credit or debit card. I got a visa vanilla gift card but your site says the card number is wrong. I’ve re entered and confirmed it is correct. Is there an issue using this kind of card for subscriptions? If so is there any other work around? I tried loading the gift card on Apple Pay, but it won’t work there either. The gift card says it’s only good in the USA. Is that the problem? Anyway to setup a payment in the USA ?Thank you