Damaged goods with no feedback

My Mom purchased a tablet from American Swiss not too long ago and the battery didn't even last a day so I took it into Vodacom at Canal Walk because American Swiss didn't want to book it in within days she received a brand new tablet. Great service but this new tablet had the exact same problem. Bear in mind that she does nothing on this tablet except take videos and pictures and this too is very minimal. She then took it to the American Swiss Kenilworth Centre on the 7 November 2015 and they said they will provide her with feedback in a few days. It's now 2 December and I had to phone in to query this. My Mom needs her tablet because her baby son is getting married on Saturday and she wanted to take pictures and videos. I called this morning, spoke to Traci and she asked me for a JC number which I had to call my Mom for. I got the number and called back but I could hear in the background that she did not want to talk to me. She told a girl to take a message and the girl asked me for the JC number and then she wanted to say bye so I said I want someone to call be back urgently and gave my number which she failed to even ask for. This is bad service for me.