Cancelation Terms: Parking privileges may be surrendered only upon written notice. with returned receipt given to Operator not less than thirty (30) days prior to the expiration of the current calendar month, or if less than thirty (30) days remain in said current calendar month, payment by Patron of the next months parking charges. In the event of such surrender, Operator shall be under no obligation to refund any unearned parking charges previously paid. The prepaid Last month rent will be applied only for your last month and is not refundable.