I posted the same question on another forum, maybe I'll get more answers here ? Thanks.
My husband and I arrived at the Kings Cross station and bought (2) 7-day travel cards from a lady person at the train station and charged us 41.4 pounds per card. We thought it was just about 30p but i didn't ask her (my bad) why she was asking for a much higher price. Has anyone experienced this before ? I think the lady is from East Coast and our travel cards say 1st class, london terminals and london zones 1-2. Thanks.