xposing a Training Academy looting Money from private companies and providing false information

I was supposed to attend a course called Winning Tenders, Bids and Proposals, 2016 Masterclass in September from this company. They requested payment in advance and the course was scheduled. However closer to time they sent me an email and postponed the course. The fist time I did not take offense but then when I was supposed to attend the course, they postponed again. The 3rd time I requested them to refund us the money because clearly this was all a hoax. Since then I have been asking them and battling to get our company money back the amount is R5999. They eventually sent a Refund Commitment letter signed by Mr Jason Ndlovu committing to refund me but they never did. Is there anything we can do, so we can recoup this money because they are crooks. And they are not only doing this to me. They sent me a refund commitment letter addressed to a company called Iveco by mistake and when I asked them about it they fixed it and did not respond. This company lures private companies under false pretences that they offer courses and as soon as you make payment they disappear with your money. They have opened another company called Mogale Knowledge Hub and are busy sending bulk emails to unsuspecting clients.