We have sailed on Silversea more than 100 days. Once we reached 100, we were given a 5% discount plus free laundry services. We were just about to book a designated Venetian cruise (extra 5% off) when our travel agent told us that if we don't book door to door, we cannot use both the Venetian discount and the 100+ discount. In order to use both, we have to book door to door. We ran the numbers and going door to door doesn’t make sense for us. I feel that Silversea is punishing their most lo