I remember getting the vouchers years ago and I used them a couple of times, as a long standing customer with 17 trips under my belt and another 3 booked I really do think that some kind of loyalty discount shoud be introduced; as I have mentioned on another post Voyages of discovery offer a 5% discount after just one tour. Even just a small token of appreciation for our loyalty would be good, us repeat customers are after all a good advertisement for the brand