Faulty BB Z30 with Vodacom for 1.5 months 4 repair

Dear Blackberry,<br> I took a Blackberry Z30 on contract through Vodacom at the end of January 2015. It is now 1.5 months, and my 4th time,sending the phone in for repairs via Vodacom. They cannot tell me anything,I even gave them a video clip of what the phone does,and all I'm being told is that the phone is with a tech for assessment. I am sick and tired of this nonsense, I do NOT WANT that phone back, it is under warranty, I want a NEW PHONE. Vodacom just tells me it has been escalated,but I don't believe them anymore. I want another phone, and I will not accept the same phone back again.You are the manufacturer, I expect the good service you all so proudly advertise! Please, help me to solve this and provide me with a new phone, it's the least you can do!