Cancelled Ticket

We had to cancel a ticket about 10 hours before departure and was told a reference no will be forwarded to us for future use as we now have a credit. This still has not been done almost 2 months later. Taking into account the ticket we purchased was for R795.00, I don't think there is many people who can just throw this money away. Even after emails was sent directly to Greyhound, no response was received. I like the bus route and find them quite capable but this will now make that I would rather use another bus service when I need one.