Vodacom - false advertising

My husband tried to apply for a Vodacom contract special , it was a really good special and the monthly payment of R350 . My husband did the application and was called the next day to say he cannot get the contract because of affordability , my husband definitely does not have an affordability issue , he can qualify for a BMW today but not a phone for R350 a month !!! I tried to apply and got the same response on the application ?? Clearly Vodacom are falsely advertising this product to entice people to apply and then convert them to another product , it is clear this offer does not exist. I would like Vodacom to explain how they got an affordability issue or I will be taking this to the Consumer protection act as this is clearly false advertising