48 working days and still no refund!!!!

I requested to cancel a booking from Johannesburg to Cape Town on 12 December 2024, on 20 December I submitted the documents requested by Greyhound. As explained by a representative, the refund would take 21 working days which I understood. It been 48 working days and still no refund in sight. They do not respond to any of my emails and when you call the customer care line you are put through from one agent to another and all they can tell you is that they had so many cancellations over the December period and that they are still busy paying the refunds. I just want my refund to be paid back to me immediately or at least someone from Greyhound to give me an update!!!!!