No feedback not interested

I visited the store Saturday the 19th of September, I was assisted by the Manager who was very helpful but advised I had to return on Sunday as his technician was not available. I returned on Sunday and he explained to technician Shaun what he needs to do. When it was my turn to see Shaun he asked me what was wrong with the phone even after the Manager explained and I repeated myself. He took my phone gave me my sim card, battery and back cover of my phone. He did not give me my memory card and I also didn't ask because I have never sent a phone in for repairs before. I received am email confirming my phone was ready but when I arrived my memory card was not in the phone. I did not sign anything as he said he would call technician who worked on my phone to send memory card. I have to call Shaun numerous times for feedback he does not call me back. I called Monday the 28th of September and then again 3rd October left message with Ronel, 5th October got hold of him he said he would phone me back , it's the 6th today still no call. My time is being wasted by having to call after Shaun all the time and no calls from him. I just want Shaun to find my memory card and give it back.