Well, this is one of the reasons we do giveaways in the Discord of our paid stuff like DLCs and soon the Pandora's Box packs. I'm still searching for other support services that allow Discord Integration AND allow the type of content we make, but it's really hard to find stuff that does both and isn't a pain in the ass to post to. We tried Boosty for a while, but crossposting is such a pain. We'll keep looking, though.
From what I'm seeing, there are prepaid cards in the Netherlands. Like gift cards. And you can use gift cards online.
https://dutchreview.com/expat/prepaid-credit-cards-netherlands/