Poor service from Vodacom Repairs

I took my blackberry in to the repairs shop on the 10th August. Recieved a sms back stating that i must collect it. I called and asked them if the phone was repaired or just a software update, they advised me it was a software update. I then told them to send the phone back in and make sure the repairs are done so that the phone does not switch itself off anymore. I called on the 17th August the man told me that it was infact not sent back as i requested and that he will called me by the end of the day as he will have a look at the phone. today is the 18th August i still have not heard anything i have been calling *** all morning no answer i want my phone fixed and returned to me!!!!! and maybe a little bit of customer service.