I never worry about this. If the property refuses to remove the charge I simply dispute it with the credit card provider I have an excellent success rate doing so. If more people would do this it might teach these properties a lesson.
Chances are that is simply the card issuer giving a credit and not going through the chargeback process. If the latter, you would see a temporary credit which would then become permanent once adjudicated with the vendor.
Depending on your value as a customer to the card issuer, there is some amount of goodwill credit allocated. But, don't make the mistake of believing that this affects the property itself.
Stayed at Le meridien Piccadilly last month. I asked for the mini fridge to be cleared out so I can store my stuff. No questions asked and items were removed by housekeeping with a couple laundry bags . No charges.