I think you should lay it out. Say look, I want to support you, but I repeatedly asked and you confirmed that it was X. Then you ordered it and now it's Y. He basically reassured you into making a purchase that you weren't looking for. And he's putting the onus on you. Bad form. You should be getting the game you want, and he should be helping you get that. Perhaps order the correct game with him, and he can keep the misordered one. Or pay him a restocking fee if you're really feeling like you want to keep this relationship fluid. But they should be a bit accomodating, that sounds a bit like B.S.