I find it strange that you bundle your currency ecosystem into a product that is widely used in the US and you haven't ironed out how to sell it directly to them. Also, it's a strange choice geoblocking the traffic rather than serving a static lander explaining the issues. This entire situation is rife with strange choices.
I see risk exposure increasing greatly across the board, for Signal operations, users, and everyone involved from your side due to this merging of services.