Bad service at vodacom

<p>I bought an S7 edge on contract in March 2017 and on day 8 it started overheating. I went to the shop and they said they will book it in and I took time to take it there because I was out of the province for some time. when I took it in on the 1st of June 2017 they said it will take 2-3 days and its probably the software. I waited for their call and nothing and I went to the shop on day 5 and they said they dont count the weekend but it will be fine maybe by the following day. they never called or sent an sms I went to the shop in Bloemfontein Loch Logan Waterfront mall and they gave me the fone and now they replaced a lot of things. when I left with the phone few minutes after leaving the shop I tried making calls and I couldnt hear a thing at all. I took it back and they said I should leave for few minutes. I did and only to find that when I came back they could not fix the phone and it came to my mind that it means there are so many faults with the phone because it did not have a problem with the speaker and the microphone they said it has now and they booked it in again until today. I told them to give me a new phone and they refused. I am paying for that phone and missing much and feel like my life is incomplete right now. Please assist! what should I do?</p>