Bad customer service

I am disappointed with the bad customer seevice I am receiving from dis-chem Cavendish in Claremont. I registered for the dischem rewards baby programme about 5 weeks ago. I was advised by the consultant that if my baby is under 6 months I qualify for the baby bag when I spend R300 I advised her I gave birth on the 31/3making her 3 months. I spent R350 two weeks ago and have been ccontacting claremont to find out wen I can collect the bag and every time I get told that they will call me back and no one calls me back this is really pathetic service. They don't care about there customers. I need head office to sort out this problem immediately. This is unacceptable.