The secret is out, I occasionally play @Minecraft. @MojangSupport I need assistance purchasing a realms server... Changed my browser, card information and device... Nothing is working... my @Microsoft account ID is "THELUMPYLLAMA" if needed. I'm trying to give you money. Thanks.

Payment issues can be caused by a ton of different things. If a different browser doesn't help, some prepaid debit cards can't be used due to US law. Also, ensure international purchases are permitted. I know waiting's no fun, but also try later and let us know how it goes! ^AM

I used multiple cards, and have used both over seas. In addition I had the same issue about a year ago on my account…