Possible **** - no contact details or follow up

I attended a workshop hosted by Tigrent Learning. They claimed to be associated to Rich Dad Education SA and Brick-buy-brick. I signed up for a 3 day workshop and paid R14k towards it. Workshop is scheduled for Friday 21 August, but i have had no indication of venue or that the workshop is actually going ahead. The organisers have scheduled 4 free workshops in JHB and i would like to achieve the following: 1) either get my money's worth and know whether the workshop that i signed and paid up for, is going ahead and are not bogus and 2) be able to warn people who are thinking of attending the free workshops in JHB next week, that they could be signing up for a ****.