Zee Magic Tricks Expo *******

I purchased two items at the Hobby-X expo - a grater and a whisk. Neither of which work as they were demonstrated! They are a total ******* and considering the R299 and R199 I paid for the items, I would like to return them immediately for a full refund. No contact details on the internet. Expos should be aware of these ******* artists as this is not the first review...