Valet must be free but guests must pay for the machine by credit card or player's card. Later I knew i had asked them for a room charge and then, I had to request a full refund. Actually, AIRBNB gave me the specific room number but they gave me another room.
( Airbnb gave me room number 33032 but I stayed at 29032.
I don't know what if they gave me the same room as Airbnb did, the valet issue did go easily.
At last, I lost the first-day payment of $30 because nobody was inside the valet office and I had to go out hurriedly. So I paid by credit card thinking the hotel could refund later Finally, I checked out without a refund.