I made a reservation ID ******* for 2 nights hotel near BWI plus parking at the Clarion *******300. Although I explained to the night clerk that we had prepaid using sleep-park-fly, he charged our credit card for the night, even though he told us it was "only for incidentals". When I called to dispute the charge, the manager would return the call - which he never did. I will call my credit card tomorrow to dispute the charge.