Dear, dear boys - the "small print" doesn't work any more.
The Consumer Protection Act 2015 has put paid to "cover all" clauses once and for all.
"Unfair" clauses will be exposed as such and be of no legal effect - so - if you advertise Flying Scotsman and turn up with a duff - you had better be thinking of a refund rather more aligned to the actual cost of the ticket. It's not a journey that is being sold but the "Flying Scotsman" experience.
If you think I am wrong - read up and inform yourselves.
Promoters - "vendors" are required to apply a reasonable level of skill and professionalism in the conduct of their business - so
Promising locos that are not even in ticket is a recipe for a 100% refund
Promising routes that aren't even gauged is a recipe for a 100% refund
Describing attractive welcoming rolling stock and providing unlit, unheated coaches where the toilets won't work is a recipe for a 100% refund.
Suggesting times that are undeliverable is a recipe for a 100% refund.
etc, etc.
Yes this does make a promoter's business much more difficult but no-one makes a promoter enter the business and no-one is buying a product in a legal vacuum.
If others with rose tinted spectacles are prepared to be turned over for large sums of money then that is their decision.
If I choose to buy a product it will be with my eyes open, expecting to get what is being described to me or a no questions asked refund in the case of a failure to deliver.
That is UK Consumer law.
It is clear you are a very confused individual (at least legally speaking) and, sadly, it is you you need to read up and inform yourself as a little knowledge is a dangerous thing. Your own post gives a clear defence to the kind of action you seem to think is possible:
"reasonable care and skill".
The law is quite clear. You can ask a vendor to repeat or fix the service that you feel was not delivered as agreed if it's not
carried out with reasonable care and skill, or get some money back if it cant be fixed. This is not the right to ask for a blanket refund in the terms you seem to think.
Consider: The advertised steam train breaks down at the last moment through a mechanical fault that occurred in a 70 year old piece of equipment. Your view is that unplanned last minute event should allow you to claim a full refund. My views is that as long as the locomotive were maintained within a reasonable maintenance regime by people with adequate skills using appropriate equipment you would have no claim.
I will agree that if a tour promoter knowingly lied to you (not just a late change of plan) but made an outright lie a claim may be more successful!
BTW - you still have no claim against Network Rail which i suspect is your main interest in all this. There is also an untested question as to whether the act extends to the kind of services ( not goods) being offered by a railway tour promoter. But an expert like you would know this.
