When i want to donate via credit card and select desired amount window pops up that says that my payment from 2018 is refunded. the thing is i dont recal that i ever tried to danate before so i dont know what transaction they are talking about. However, i am not really interested in figuring out what was that transaction, i just want to donate with my credit card but i cant go to next step couse of that window. please let me know how to resolve this problem and how can i send screenshot of this window that pops up when i want to donate. thanks.
Casually dismissing the refund situation you "have no clue about" makes it sound you know exactly what happened. It looks like you're blocked from donating due to that casually dismissed refund.