iPhone 6 Repair

I took my phone to Westgate on the 20th March 2016 to get a receivable audio fixed as my phone was under warranty. I received my phone back on the 2nd April 2016 at the Cresta branch, I received my phone flat which couldn't even be switched on, I got home put my phone on charge realized the Touch ID pad wasn't working I turned the phone around and realized my camera lens was cracked. I then next day the 3rd of April 2016 took it back to Cresta and explained my frustration they re booked my phone in again, they said I needed to talk to a gentleman named Leon as he was the repairs mangager which I did he then sent it to menlyn branch for I have no reason why he did that which eventually landed up at the advanced repair Centre I have phoned the 1944 number a couple of times no consultant seems to help me as the say it has been escalated I have been waiting now almost 1 month for my phone I took my phone in for a audio problem it came back as a worst damaged phone. I expect so much more from Vodacom they need to either fix my phone or replace it as the damages incurred is from them and it should be done as priority because it's a comeback repair.