I did the same mistake as you last month and actually managed to spend everything that I had on my card. But I went through a lot of issues, like my money vanishing from the card and appearing 6 days later after submiting a support ticket and getting refused on almost every website that I tried - just like this guy.
My card is credited but it is refused everywhere I tryed it. Despite what's advertised it doesn't work where it should. And last but not the least, no support and no way to get Bitcoin back.
Consider it a SCAM.
Maybe wait a few days to see if you get an answer? They seems to be super shady but they still "work" after all. Just try to spend your funds asap and don't use it again.