ANNOYED!!!!!!

I sent my phone in to Woodmead Dionwired for repairs on 06 February after it started over heating, switching off, and the sound disappearing every now and then. I have not received ANY feedback with regards to the progress of my phone. I was told it would take one week to sort out. I called Dionwired on Monday 16 February and was told that there was no feedback from Head Office and that I should call them. I was on the line for 20 minutes and no-one is able to assist me and the phone was put down on me! I am beyond annoyed. I called again, and after waiting for 15 minutes... I was helped by a very friendly lady named Thando at Powercare who told me Samsung had not delivered parts to them and assured me that she will get back to me. It is now 2 days after I called, I cannot get through to them and Woodmead Dionwired does not know what is is going on. I WANT MY PHONE BACK BY TOMORROW 20/02/2015 OR I WANT A NEW PHONE. I'm so irritated with the service received. CAN SOMEONE PLEASE GET BACK TO ME??????