I have only called and complained once, and it was because I was on the phone for two hours while at a Marriott. I ended up getting some points credited to my account, but I honestly wish Marriott would learn how to correctly post points; This is the reason I left Hilton. I have already had to call Marriott a few times this year regarding incorrect points and each time I call the agent always recalculates it wrong and I have to call again.