Bletchleyite
Veteran Member
A permit to travel isn't the same as a promise to pay, but there are similarities. I don't know if any companies still have them and actually keep them in working order.
What I do wonder, though, is if any legislation covering PERTIS (is there any?) would also apply to Promise to Pay? It is indeed not quite the same thing, but would be used in similar circumstances - typically they are turned on when the ticket office is closed and accompanied these days with a card only TVM (years ago they would probably be accompanied by a cash only TVM if anything, and it's card payers who would need to pay on board having chucked 5p in!)
FWIW, following in my father's habits as a retired banker, once I was old enough to get a payment card (16 I think) I have very rarely, if ever, paid cash for a train ticket. I prefer to use a TVM than a person anyway, a TVM doesn't argue. Though having obtained a new phone with a rather better battery life than my old one I am making far more use of e-tickets than I used to.
(An interesting question is if with a phone in my pocket with several TOC apps plus the Trainline app on it I have an opportunity to pay at any station where there is a signal?)