REPAIRS MORE THAN 3 WEEKS!!!!!

My autopage account was due for an upgrade and i decided to take a new Caterpillar phone. After just about a month of using it the phone suddenly started packed up completely, i could not enter ANYTHING on the phone, not contacts, photos, absolutely NOTHING. I handed the phone in at Autopgage Herm**** which in turn sent the phone in for repairs. They can not get any answer from the repairs office nobody is even giving them a straight answer. The phone is completely useless. I WANT A NEW PHONE ISSUED TO ME IMMEDIATELY. I am a businessman and need my phone. THIS IS BREACH OF CONTRACT and i am going to hand this over to my attorneys if i do not have an answer by closing time on 1/9/2015. There is no way the phone can be fixed and even if it gets fixed it will keep on giving problems. I WANT A NEW PHONE or i want my contract cancelled and i will go to Vodacom where i have much much better service on my other contracts. When my wife phoned your customer call centre this morning the phone was blatantly just put down in her ear!!! Where have you EVER heard of this!!! Herm**** Autogpage says they cannot issue a new handset without head office giving them written notice!!!!!!