Had a reservation for Saturday night made and paid in advance a month prior. Wanted to arrive two nights early and stay through our previously booked reservation. Nothing available by Dockwa but they accommodated us. There were many open moorings available. Was charged two for the two additional nights upon arrival then on the third night (that we previously reserved and paid for) we were charged again. Have emailed the harbor master a couple of times with no response or refund for the extra night charge yet.