Originally Posted by craigthemif

Sorry for the lack of sympathy, but there's a really incredibly simple solution to your problem... don't book prepaid rates so far in advance!

Then you can cancel and re-book when the rates almost inevitably go down before your arrival.

There is no rational universe where you can book a non-refundable, inflexible rate (at a discount that reflects the inflexibility) but then expect to receive a refund if the rate goes down later.