Having read through various threads on this forum and waded through pages of legislation and regulation I have yet to find anything that dispels my ingrained assumption that cash MUST be accepted as a method of payment at rail station points of sale. The reason I ask this is that I have been involved in some Rail commercial schemes that all confidently produce cashless retail strategy's on the assumption that Card payments alone will suffice. When I was in the industry I was lead to believe that any operator that enforces the Penalty Fare scheme or offers sundries (upgrades, excess fares, extensions etc) must LEGALLY accept cash as a method of payment to ensure that any customer with the intention and means to pay can do so. Can anybody on this learned forum confirm or deny my assumption and/or give reference that proves/disproves this? Thank you in advance