No way to pay for upgraded plan from USA?

I’ve been trying for days to pay for an upgraded plan but neither of the payment methods will work with a USA card? Surprising since the amounts are in US dollars. I saw another post about this in August of 2019 and it appears it still hasn’t been fixed. I am more than willing to give Deepstack my money if there is some way to do that… Please advise!

Hello? Deepstack? Are you there?

Still waititng for a reply on this