still waiting for the phone call

Hi on the 28th of August 2015 i took my daughters phone back to the store as it just stopped working.it was not the first time i had initially took it back 3 days after buying it.It stopped working they said it was a charger took it home then again after a while it stopped working again when i took it back Tshepiso said it will take a week or so for Vodacom to sort it out.its almost a month clearly the phone is faulty,there is no feedback nothing i called the number on the slip i got from Pep the number doesnt work.what exactly is going on? Why are you selling faulty phones to consumers and even worse you dont even fix the mess you did or vodacom did on whoever behalf.all i know is i paid money for that phone and i font want that ****py thing back its either you refund me or give me another device.i have already brought back that phone twice what will take for you to to take note about the problem?dont be ****** to your consumers!!