Don’t rush ahead and get yourself rejected from all the payment options before you’ve had time to see if there’s a better approach. I suggest you wait before contacting any more payment processors. You may get ideas from things other users come up with and try.
Just some random incomplete ideas: There may be a way to position it as an intermediate credit for micropayments for some virtual good or something. Or maybe if the payments are only in one direction. If you only buy bitcoins, then you’re only sending money out not taking people’s money, that would still be useful to peg the currency. That might be payment for computer time.
Credit card is only one way. Don’t even talk about the idea of returning money to customer’s credit cards. Credit card companies hate that.
In any case, any payment processor is going to expect you to be selling something real.
Do you have electronic transfer or paper cheque in your country? (even if only within Europe)
Source: Published by Martti Malmi on GitHub in February 2024 as part of his testimony in the COPA v. Wright trial. The full correspondence archive is available at mmalmi.github.io/satoshi/.