Last week I bought a super off peak return from Burton-on-Trent to Clacton-on-Sea from Red Spotted Hanky, who routed me via HS1 from St Pancras to Stratford, thence Greater Anglia to Clacton. The ticket had the customary 'ꝉ' mark on it.
When I arrived at the SE platforms at STP the barrier rejected my ticket, so I showed it to the man at the gate who told me it wasn't valid, I had to go via tube. I showed him my booking confirmation, to which he replied, 'That doesn't prove your ticket is valid, it just shows the fastest route (!). Your ticket isn't valid because we don't get any money out of it.'
(I thought that odd since SE use the same booking engine and would have sold me the same ticket for the same route, however ...)
In the event he grudgingly let me through 'this time'. My ticket was rejected again leaving Stratford International; but the man on the gate there let me through without questioning the ticket itself.
Who was right: RSH and the booking engine who sent me that way; or the gate staff who told me my ticket wasn't valid?