Just outside of Sausalito, one of the members of our group realized a tire was flat. We had recently passed a bike shop, Bike Odyssey, so we all turned around and walked the bikes to the store, borrowed a pump, and started our journey again. About 2 miles later, the tire was flat again. Coincidentally, we had just passed another bike shop, Mike's Bikes, so we turned around and walked the mile back to the store. That's when we realized our biking plans were no longer going to happen. We managed to make it back to the ferry in Sausalito, while stopping at bike shops to pump up the tire 2 more times. When we returned to Blazing Saddles in front of the cannery, we asked to receive some type of discount for the bike that had caused problems. The man working the counter informed us that because we did not call the phone number on the brochure when we ran into trouble, we would not get any kind of a discount. The four of us were rather surprised to hear this because we had not been told what to do in case of this kind of situation and we had solved the problem ourselves. The employee continued to be extremely rude and told us we would need to call the manager, then was visibly upset when that is what we decided to do. We ended up calling the manager and received $5 off the total price for 1 bike rental.