Im making no sense to tell him to accept paying the bribe? Why you think so?
That will expose their future and previous intentions of the whole situation.
Accepting to pay them is not like paying them.
Playing by their own rules but with brain can expose them so easy.
Chat screenshots don't mention escrow and you're explicitly telling the other user to pay the "bribe" with no mention of this "exposé" plan you're trying to spin here. You're also going to great lengths to make it sound like a good idea ("all casinos do it").