....even if I want to get on at a later station? Specific example: I want to travel from Prestatyn to Shipley, which is £16 advance single. However, I'm unsure of the exact arrangements on the day and may want to board at Flint instead. However, there's no advance available from Flint to Shipley, only an anytime single costing £££££ more than the Prestatyn > Shipley advance. Can I just book the advance and turn up at Flint if that's the way it works out on the day?