well I'm going to Victoria station , my hotel is close to it ,I'm looking for best price , yes I need roundtrip , as we will be going to diff places to use the 2 for 1 , must be doing something wroung as the websites still show me a time to pick a train ,checked Gatwick express , looks like same price as sourthern around 61 british pounds for 2 return ,also it says print at home , will it still be valid for 2 for 1 if its done at home.