No way they approve non-resident. Maybe someone had a success?
I've used a referral link from the video and the address check method, so it is not a CMRA.
I also used a real US phone number, not a MVNO. I do have also a website connected with my business, and described all very clear.
Mercury accepted my application, but not RelayFi.
They require a passport verification for non-residents which I passed.
For my personal address I used a real address in the EU (Not from the list of prohibited countries) with a real bank statement.