The problem with selling a lot of exchange tickets at a concession price is that they have to refund the season ticket holder based on it not being a concession so would be losing money.
I guess they could change their money back scheme to allow for this and only give you a concession price...
Managed to sell mine, which came as a surprise.
Just couldn’t face the bank holiday traffic from Dorset in conjunction with the shitshow that is on the A27 at the moment.
Think last week took around 4 hours to get back and knew this week would be worse.