My partner's daughter is 15, she takes a train from Mill Hill to Elstree & Borehamwood to school. My partnet told me that she pays around £10 a day for a return trip. I checked train ticket price for a return trip for under 16 and it should be £3.70 anytime return. When I asked my partner if she has a child oyster she said yes, and she used that oyster when she was in a different school and had to take a bus and she was getting free trips. But now it looks like that by some reason train company is charging her adult fee on her oyster card. Are we missing something, did we have to tick a box somewhere in order for her to get a discount on these train trips? this is all new to me and have no idea who to call or where to look. Paying twice as much in these hard times is putting a lot of pressure on us. Please help