Poor service delivery from Vodacom

I have a contrat with Vodacom, I tooke out the contract in December (Sony Experia Z5 Compact, brand new)<br> At the end of January my phone starts giving me problem and I book it in for repairs. It was gone for a week and when I collected it, the problem was still the same.<br> I went back to Vodacom the next day and they said the only thing they can do is to book my phone in again!!!<br> I then contacted someone on a higher level and they said I will have to book it in again so that they can get a job number to the repairs department.<br> It is two weeks later and I have not heard any positive feedback on the status of my phone.<br> Bearing in mind I am on contract and for three weeks, I am without a phone! At the end of the month I will be the one paying a bill for something that I was not using!!!<br> This is very poor service!!! And I am an unhappy customer