You can't refund, you can resell via the ticket exchange.
The link is on the personal profile page to the right of your profile, headed 'alerts' in a red box
Thanks, i managed to find it.
Found a seat with a much better spec but the system won't allow me to buy another ticket until they have resold my old seat.
Had to get it on a mates card and he can transfer it when they have resold my old seat.