From my limited experience with banks, I think it’s unlikely they will issue any non-standard statement. They won’t want to loop in their Legal to check what they’re admitting to.(or that the recipient bank will actually do much even with a written “confirmation”).
What I would suggest is trying to get an unrelated, but standard document out of curve, which will coincidentally state your address (or the bank’s branch address or domicile, or whatever looks like it would suite your purpose". Something like a bank statement, they would have hard time saying no to that.
However, not all hope is lost! I’ve just tried again, and looks like Revolut accepted my card without any problems now!. FYR, my BIN is Romanian (correctly), 5574 4442.