Instructions:First post, hope it helps some folks!
Start your holiday in style before you have to get on to a Ryanair sardine tin - FREE 1st Class upgrade on the Stansted Express (Stansted Airport - London Liverpool Street Station) single or return.
More legroom! Spacious tables! Free Times newspaper (probably)! Exclusive access to the National Express East Anglia First Class Lounge (how good does THAT sound?) on Platform 10 London Liverpool Street!
Just enter the promotional code " TTT10 " in the Book Train Tickets box on the left of the site and it will automatically offer you the First Class option for the same price as the Standard fare. You don't have to be a MoneyCorps customer!