In addition to getting confused by TPE’s website for getting to Edinburgh, I’ve been looking at Edinburgh to Glasgow fares. It seems you can’t actually buy a 1st class return ticket. I can see 1st Advance singles, and I can see you can upgrade for £5 on the train if it has 1st accommodation. It just struck me as odd that you can’t buy the ticket online before you travel. Is this possibly to avoid arguments when you get on a service without 1st?