Very, very, very bad customer service from Pick n Pay

I have contacted Pick N Pay about a pet club members price on cat food, which they have contacted me fore. However, I have not heard an answer from them since last week. Pick n Pay didn't even know about the their own cat food special that is currently in their brochure which ends this week. When will Pick n Pay actually respond to me about my query cause I would like to do this special? I have sent 3 emails already asking what is the update. I have even gone to social media and have asked, which obviously they didn't respond - because their customer service is truly awful. What is the point of contacting customer service if one does not get a response at all?