I cant donate because somehow my card is not verified. I dont know why it is a thing but i used that card a lot. And some god forsaken payment service says my card is not good. It is classical MC card. Also you should fix your payment services, include paypal or normal payment service that works in 2018.
You need to talk to Paymentwall support for this, not us.
As for Paypal, we used it a long time ago and had funds seized so that won't be happening again.