We have 4 tickets to go to see The Mousetrap in Bath (26 November). I was looking forward to it but then DD's orchestra changed the date of the performance to that day! They cost 132 all in and the theatre won't give us a refund unless it is sold out (which apparently it isn't yet) and they manage to resell them on the day.
What should I do? It would be such a shame to lose the money.