If Staff Travel Card discounts are included (rather than the original spec of railcards...) presumably you also need to include the Gatwick Airport Staff Discount, Surrey County Council Concessionary Scheme, Leicester and Leicestershire ENCTS card discount, FIP 50% off, Dales Railcard, Jobcentre Plus Discount Card, Valleys Senior Railcard, Oyster 16-18 Photocard, EASIT discount... and perhaps a couple of hundred more? Just the list of local authority concessions alone is longer than the one you've already got.