i agree with sophiegirl.
1) it's not that big of a deal - hotels make a lot of mistakes. e.g. - not responding to requests, forgetting things, etc.
2) the best thing you can do is make a request directly to the hotel or manager clearly and succinctly stating your complaint and a specific request for what you want as compensation. (e.g. 1,000 marriott points, an upgrade on your next stay, a written apology ?? - etc.) i find this is my best bet in getting my complaint addressed.