In message , Dowager
writes
Question: Surely you can't be sold a valid ticket (whether pre- or post-
journey) AND also be issued with a PF for that same journey?
Yes:
http://www.ircas.co.uk/penaltyfares/pf_faq.htm
If you board a train without a valid ticket for your entire
journey, or a valid Permit to Travel, you may be charged a
Penalty Fare of £20 or twice the full single fare (whichever is
the greater) to the next stop, plus the full single fare to
complete your journey.
--
Paul Terry