I have a host who introduced himself to me on a visit to MGM a year back. He arranged a nice 2 night Sky Suite stay shortly afterwards and has sent me a few emails telling me about various events/shows coming up but the 15hr trip from Sydney hasn't seen me rush back enthusiastically. I am planning a 3 day stay in early December but out of the blue got an offer from New York New York for a suite/food/$750 comp play/$150 spa credit.

Given MGM and New York New York belong to the same group will my MGM host get "credit" for my play or if I want to remain "loyal' to him should I just email him and see what he can offer at MGM?