Theft - where is my promised refund?

I purchased an airline ticket (I bought a few tickets and hotel bookings) through Expedia, during April this year. Unfortunately I had to cancel all the flights due to a death in the family.<br> I got refunds/part-refunds for all of the tickets except for one: an SAA return flight from Johannesburg to Jakarta via Dubai. I asked Expedia about information regarding getting 100% (as opposed to 75% due to the 25% cancellation fee) back due to special circumstances (death in family). Of course they could not give me info. I eventually called SAA and found out that since it was not an immediate family member that I cannot get a full refund and so decided to just cancel it normally through Expedia's call centre. Expedia informed me on the phone that I would get a refund in 8 weeks. They have in their policies not to write about cancellations or refunds in any form, but only telephonically via their call centre. This is how they avoid paying. After this time I saw I had not received my refund -and have spent many hours on hold. it is now 5 & HALF MONTHS SINCE CANCELLING. Expedia has ****** my USD772.40 (* 75%). Disgusted & cannot believe how difficult it is to for companies to keep policies.