here the creator responded to all the questions:
Why can't I make a card payment? This is likely an ongoing issue on MasterCard & Visa's end regarding NSFW content. Because of this, there's nothing I can do, sorry!
(i hope this helped ^^)
Thank you for actually taking the time to read the FAQ ;v; And for helping out like this!!
your welcome and i just wanted to let people know that its not your fault and out of your control
