Honest tip: When I had a Wise-related problem, I reached out to @patio11 (famous HN user) for help and he connected me with a high-ranking employee at Wise. We had the problem resolved a day later.
No, I'm talking about Wise. I was falsely accused of some stuff, my account was locked, and they were ignoring all communications even as I tried to prove my innocence. @patio11 helped me escalate and we had it resolved really quickly.
I'm also a Stripe user, but I never had a problem there.