hexagon789
Veteran Member
I think if it was very clear they could just about get away with it[1], but it's still morally questionable to include it in any way in the advertising if non-provision does not result in a partial refund to reflect the "bait and switch" that has occurred, even if not intentional.
[1] Something like "A food and drinks service is provided on some trains subject to availability; this service may differ from day to day so please ask your traincrew what is available on the train you are on". That won't, however, sell First Class tickets, it's more likely to increase the takings at M&S Food and Upper Crust.
ScotRail put very similar wording in their timetables in relation to catering trolley provision, presumably that's so they don't have to compensate for the times they cannot provide it