Poor service, no feedback or responce to complaint

I had a problem with my Samsung Note 4 since new. The phone gets very warm (like burning hot)and the battery lost its power very quick. The phone also freezing and cuts out a lot. I had to take the phone back to Cell C several times. <br> They assist by setting up the phone and delete downloaded Aps etc. <br> They then eventually send the phone away for a technical report but did not keep me informed of the progress. <br> I had to keep calling for progress and nobody could assist with real answers. <br> I was after several calls and many frustrations notified that the phone will be replaced and it was send 7/12/2015. I visit Cell C Bethlehem on the 11, 14 and 16/12/2015 and could not get any answers. I also tried to get this sorted out telephonically and request to speak to management without success. I even lodge a complaint on the Cell C website but nobody responds. Melissa told me yesterday that she will assist but will call me back. Needless to say that she never called back. I went from my previous service provider to Cell C and regret it very much. Nobody at Cell C takes responsibility regarding my complaint and there are no service by keeping the customer informed.