As per another of the one star reviews below, their Flexbook and Flexbook plus is not worth the paper it is written on. When booking bus tickets with Aircoach, they offer the opportunity to purchase 'flexbook' or 'flexbook plus' add ons to your ticket. In each case, the Aircoach website states the benefit of these add ons as being the ability to 'Change your booking up to 1 hour before departure of your journey'. Aircoach then have a provision in their standard T&Cs (that the cynic in me would say is deliberately hidden away in the hope you don't read/understand it) that this effectively does not actually mean departure of YOUR journey, but the departure of the relevant bus AT ORIGIN. This is incredibly (and perhaps deliberately, given the issue has been flagged to Aircoach by me and by others on this review page, but yet they still don't clarify the wording) misleading and leads to consumers paying for an add on they either do not need, or are unable to utilise as expected (if they have not fully read and understood the T&Cs and then gone back to the start of the purchase process to deselect their option for flexbook).