Voda bucks rewards cash back

I would like to express my disappointment after trying to confirm with one of the consultants from Vodacom yesterday, whether they were running Voda bucks rewards promotions because I received a call from Sfiso Vincent Mngomezulu posing to be one of the Senior manager at the call centre, regarding voda bucks rewards. The guy is a pro and ****med me and I would like to make people aware of these calls regarding R5000 vouchers and R30 000 cash back. The guys has couple of people that he is working with (Ashly Van Zyl) and they will force you to buy vouchers in order to redeem your prizes. Since we are approaching festive people need to be extremely cautious. Here are the numbers people should be aware of ***, ***, ***