I need a proof of purchase for my phone.

<p>I have went in to speak to a consultant when also taking my phone in to be repaired. I was with Altech Autopage and I was given over to mtn. I need a proof of purchase for my phone to state that is still under warranty. </p> <p> </p> <p>The consultant said that I should phone altech for it, as altech has closed down I do not know who to contact as everyone points me in different directions. I am getting frustrated as they said my phone would be fixed in 7 - 10 working days. Today is the 10th day and only received a assessed qoutation today where they are charging me for this. Please help me sort this out as this should be done by today. </p> <p> </p> <p>I just need a proof of purchase to get this sorted. </p>