I must admit my biggest problem with this is how late they let people know. In fact I am might wind up Mr Shapps about this. I got the email yesterday evening saying no service on Sunday. I had already left for my journey away. So no I have a car at Welwyn Garden City station, that had I know 12 hours earlier would be at either St Albans or Harpenden. GTR knew about the dispute, they know they rely on overtime to run the service, so they should have expected they were not going to be able to run the service before Friday.
GTR have always performed badly as this thread highlights.
The fact that they haven’t managed to run 50% of the service all week is very telling (still with cancellations due to no train crew). Mr Shapps was great with saying GTR should be accountable for the poor service they provide (especially at weekends) but then went quiet when he was transport minister.