^to the GM.
When I emailed the property to inquire about the charge, I cc'd him since he had sent a "Welcome" note the day before my scheduled stay. The GM sent a very prompt reply apologizing for the oversight and instructing their team to reverse the charge.
All in all, they handled this well. My client is the one who will benefit from the comp room, but I am pleased that the property extended that offer and treated this as a "walk".