Complaint about my Refund

I booked a bus from Johannesburg to Port Shepstone in Early September. On the 21st September i called the bus service to Cancel a booking for a refund. I spoke Benedict Khumalo***), and after giving her my banking details for a refund, she told be that the refund will reflect on my bank after 15-20 working days.30 days later i was called by someone from the office informing me that the banking details was one digit shot. I gave it to her(Sadly i did not note down her name), and she assured me that the money will be refunded back within a week. Two weeks passed after our phone call and the money was not refunded. I called the Office again(After struggling to get the new numbers), and this time around i spoke to Rita, and her cold response was that the money will be deposited into my account during the week. Again two weeks passed and i called the office, This time i so poke to Rita again, but i requested to speak to the manager(who was not in the office).Rita took my numbers and told me that the manager will call me today. No call from the manager today, and i still called the Office, Elma assured me that the manager is not in the office , but she will call me @ 14h00 today.....I called the office at 15h00, and no response. The most pathetic Service ever, no sense of urgency, and they are rude to the core.