Grand Hyatt Hotels in Macau

For this trip to Macau, I once again chose the Grand Hyatt Macau. Everything had been fine until an unpleasant incident occurred after we checked out. After checking out on Friday, we received a call from the hotel on Saturday afternoon, claiming we had consumed a can of Red Bull from the room's mini-bar. We were completely baffled, as we never touched anything in the mini-bar. The customer service representative said they would double-check. They called back a second time, suggesting we might have consumed a Red Bull and then replaced it with one we bought outside, implying it was a different version from their original stock. This made us even more perplexed. Throughout our five-day stay, the only thing we put in the mini-bar was a 'Cha Pai' drink we bought outside to chill. The Cha Pai drink was in a plastic bottle, and we placed it in the upper compartment of the mini-bar to chill, never even touching the drink compartment below. I'd really like to ask your housekeeping department: aren't these claims completely baseless? Their final solution was to waive the Red Bull charge, but the problem is we never touched it in the first place, so how can something be 'waived' if it was never incurred? It's absolutely infuriating; I'm being put in a position where my clear explanation seems to carry no weight.