Misleading unhonored ads in monthly catalog specials

I took out a new contract for my wife in November, part of the new contract stated that you receive guaranteed vouchers to the value of R2700.00.

I have contacted their call center, I have been to their store, I have lodged a complaint but till now I have no response neither have I have the vouchers, I call the call center and they tell me to go to the store, I go to the store and they tell me to call the call center.

The ad campaign is clearly misleading as I have never received any vouchers, or feedback at all.