I had really bad experiences with my ambassador at the start but to be honest he's turned a corner and started to show his value and at the same time showed me how bad the Marriott IT / Hotel adhering to the rules are ! I recently came back from St Regis Maldives, I got posted 19K points for my stay which seemed low considering how much I spent, I informed him, and he said he will look into it, he showed me how much the hotel inputted into the system my eligible spend, I couldnt find my folio so I asked him to reach out and do an audit and he did and he just came back and said I would be getting 48K points, which is great news but also extremely annoying that Marriott IT system didn't do a check on eligible spend and it has to be done manually which is where I assume the errors arise and makes me think how many times in the past the hotels have conned me out of points!!