Tinkercoin Will Sell You $20 in Bitcoin, But Only Once 12 years ago
Don't do it! SCAM. They steal all of your data. After giving them my FB info, and Credit card I got the same error. I was unable to get a hold of anyone (3 e-mails, 3 phone calls) I finally got "Trevor" on the live chat. He said "Their processor can't process my card" and "it's outside of their control" ... so thanks for stealing all of my data. My card works 100% just fine, don't fall for this!