We returned from a trip to Mandalay Bay a few weeks ago. Were staying on a paid room, no offer or Mlife booking - was a vacation package deal thru AA. Charged everything to room, as said before here, and recommended by a Mirage desk clerk on a few trips prior. Had an ending balance of $1,400~ on the room charges over a 4 night stay. At MB I did about 55k coin-in on slots and a little blackjack/roulette play that probably totaled 50/hand over 4 hours. This was in addition to 25k coin-in elsewhere in Mlife properties(although I do know that doesn't matter at home property). Earned about 180k tier credits to rocket from Pearl to Platinum. Went to Mlife desk night before leaving because of early flight asked them to call a host to review play and see what they could do with charges(those were probably exact words). They played dumb and said "Oh you have $150~ in EC you can use"...asked them to call a host...they go "Have you dealt with one before?" I say Not here, but I know my play was enough to warrant some "additional discretionary comps". They acted like no idea what I was talking about, and maybe they didn't. They called a host and they went back and forth between host asking for info on computer and clerk not knowing what info to give. They come back and say they will comp $200 in addition to EC. I'm baffled. Finally I ask for the phone and talk directly to host. Explain situation and she says away from computer but will review if you give phone #. Gave her my cell and we went off to see a show and dinner. Never got a call back late 10-11pm, so fired off an email nicely to host to follow-up. She did end up comping all charges except for tips and retail, as I figured was warranted by my play. But what gives with the Mlife desk? Clueless? Not trained in this? Did I catch the wrong person? Easier approach just call a host myself or VIP?