NO CONCERN OR CARE FOR CUSTOMERS

After purchasing goods online last week the system discounted my total and I paid same via EFT. A day or two later I receive an email reading "oops, Gremlins have creeped into our system and we will have to cancel your order as you were incorrectly billed" (or something to that effect). Rather upset, but nonetheless, pay me back my money then. I emailed my bank particulars but was advised that i would receive a voucher. I dont want a voucher, I want my money. I dont want to support MrP any longer and will not be making use of my monies there. I called on Monday and after much arguing was told that if I forward proof of payment I would receive my monies within 48hrs. Well, I have done that and I am still waiting for my money. This morning I was emailed vouchers after I said that I DONT WANT vouchers, I want my money! I was told Zamaswazi would check with Finance and call me back. She hasnt nor has anyone else called me back. What is going on????? Why must I keep on running after you for a mistake that you made.