poor service

I sent in a phone for repairs as the screen was blank yet you could still hear it ring and the message come in. I handed it in at Worldwear at the beginning of February. After hearing nothing for three weeks I went past where I was told that Worldwear had received the phone back but it was open at the top so the sent it back to MTN. after another three weeks MTN sent the same phone back in the same condition and rejecting the claim. after many phone calls from our side we managed to get a response from Sereh Naidu to said that there was physical damage to the phone. I strongly dispute this and all the Worldwear staff can witness that the phone was not handed in \open at the top"it is now nearly four months later and we have had no contact"