No Feedback in over 10 Days

I had a bad experience at KFc in Amanzimtoti Galleria which is no different to the other KFCs in the area where I have experienced appaulling service in the last 4- 6 months. So as usual I reported it to customer care on the 6th February. I have still not received any feedback from either the store or their customer service department. All I got was an sms telling me my case was closed. I called again to ask why my case my closed when I havent even received an apology,the case was reopened but still no response. If the branch staff involved,Zeph and Janet cannot assist me then this matter should be given to their manager