Whether you have stayed at the Westin O'Hare 100 times or not, all the property's owners are concerned about is the damage to the room.

When you say, "charge on my room for $500)", I am presuming that your CC has already been debited by that amount. In that case, with the property not budging, your alternatives are:

1. Dispute the additional charge on your CC (but understand that if the peoperty documents the extra charge, you will almost certainly lose). While it's not the end of the road, whatever evidence it is that you have that the room cleaners did this to you, should be included. If you don't have any, forget it. Just sounds paranoid.

2. Sue the property for the money since it's already been debited to your CC.

3. Lump it.