I know of two companies who issue a voucher for the difference, to be used against a future booking. With one of those the voucher is valid for 2 years, I'm not sure about the other.
This encourages people to book early without the worry of the price being reduced, it also encourages them to book a future holiday with that company using the voucher, so it's a win all round. I'm not aware of any that actually refund the money, but I've not used all of them and can only comment on those I have used.
Maybe JY could look at something like this? I think you're the best solos provider there is but when your price match guarantee isn't as good as others it does make a difference when choosing a holiday.
Something for management to think about maybe.
Best wishes
Rose