Spar Bata School Shoes FALSE Promotion campaign

Spar Bata School Shoes Promotion I am so frustrated and highly dissapointed in Spar Head Office,for 2 weeks I have been calling about spending R500 at sasolburg super spar with the hope and intention to get Beta school shoes campaign. Sent an email requesting that they assist me with a solution to what I was sold, false advertising but I'm getting nothing and only being send from pillar to post I did not receive a response from them after I was promised to be called back by a lady call Belinda Lets forget . Please can someone advise me what to do because spar customer service has NO customer service because they don't respond on their emails. The instore managers keep telling me about they didn't receive stock but that is NOT what I want to hear. I am sure someone at Spar can fix this because I did spend my money in exchange for the promotion. This is so wrong in so many ways. Spar is my second complain which the first time nothing was done. After I complaint about expired food instore. Can someone do better please. I refuse to let this one go.