Bring my phone back

On the 2nd of February 2016 I took my phone to Vodacom Hatfield for a battery replacement. On the 10th I went to collect my phone and realized that the mic speaker wasn't working so I took it back immediately. The lady who helped me suggested that I take it to Vodacom repairs in Pretoria CBD because that's where they do most minor repairs and that they would fix it the same time but when I got there they booked it in and I was told that it will take 7-14 working days. It's been 3 weeks and I am the one who calls to check on my phone because all they did was sent me the same text messages that says my phone was sent to the advance repairs or my phone is at the quality assessment process. On the 1st of March I went to the store to find out what was happening and when I got there, the lady at the help desk told me that my phone is cleared meaning that it is fixed and I should go to the receiving window for collection but to my surprise the guy there told me that my phone was still at the advance repairs. My social and business life has been compromised for the whole month of not having a phone. I want my phone back in perfect working condition or a suitable replacement