Some European alternatives you might be able to find/negotiate better fees with: - mollie (Netherlands) - adyen (Netherlands) - Klarna (Sweden) - Paylike (Denmark) - Mangopay (Luxembourg) - Quickpay (Denmark) (added in edit) The ones I've tried of those, have an OK development experience, maybe not as polished as Stripe, but much better than the alternatives that were around before Stripe (huge hassle back then). Ide…
You should include this in your contract terms with the customer and collect the dispute fee from them.
It's not reasonable of you to expect Stripe to just absorb this cost.