dont get any feedback

I bought a Mobicell 5\ phone and the unit started to give me problems after 3 months, i gave the phone in on the 06/03/2016 in-store, first they send it to MTN, I had to phone them on the 28/03/2016 because there was no communication from their side, they then sent it to Mobicell, on the 28/03/2016 i phoned them again as i did not hear anything from them regarding this and they said that MTN said its not there phone, even up to today 19/04/2016 I have to phone them just to hear that they will send it, i am appalled on the way they handle this situation and i want my money back."