It may be an unfortunate misunderstanding really. (Ahem)in truth, Maximus, I had one or two such misunderstandings when I first joined up recently.
I really feel sorry for you in that you have the tickets but you can't get to the evening itself. How many times will any of us have this opportunity? (Still think a London run would be nice, so to speak)
Buddy if you can't make it, sell them for what you can get, I'm sure whoever gets them will be made up.
If it really troubles you to 'profit' from such a sale, maybe you could consider giving a donation of a share of the profits with the charity that Steve supports - MAG? That might be a win-win situation?
Just an idea.
Fingers crossed you get another chance to catch such a unique performance another time.
Cheers.
(I know, I know, it's way past bedtime).