I am on my way to Llandudno from Chester on an Off Peak Return. Was looking to see what train to get back to Chester on Friday, but although I selected Off Peak Return on the TPE booking engine, all the early trains are showing as available as well as the ones after 0930.
Could I get the 0830 on this ticket?
The trains you can use when you have an Off-Peak ticket depend on the restriction code applying to your ticket.
The interavailable Llandudno-Chester fare is, as with almost all intra-Wales fares, set by Transport for Wales (formerly Arriva Trains Wales). As far as I can tell,
all of their Off-Peak Returns have restriction code 8A and
this one is no exception.
nationalrail.co.uk/8A (and BR Fares, which uses the same data feed as powers this facility) shows that there are "no time restrictions" on 8A-restricted tickets. However, you are not permitted to break your journey (it used to be that this was clearly just for the outward portion, but it appears as though this is now intended to apply to both portions).
So TPE is entirely correct in advising you that the Off-Peak ticket is valid on any train. It's simply that TfW (or, well, Arriva before them) didn't think it was necessary to introduce any "peak" restrictions on their former Saver tickets. This, of course, used to be the case with virtually
all non-London area tickets until about 10 or 15 years ago.
And just to confuse things further, TfW's Off-Peak
Day tickets are another kettle of fish entirely, with highly onerous morning and evening restrictions which are overwhelmingly disproportionate to the discount offered!