FAULTY BRANDNEW CELLPHONE

I BOUGHT A SAMSUNG J1 CELLPHONE FROM CELLC GAME CITY(CITY VIEW) ON THE 16 AUGUST 2015, <br> TWO WEEKS LATER THE PHONE KEPT JAMMING , SO WHEN I TOOK IT BACK FOR REPAIRS CELLC WAS OFFLINE TO BOOK IN THE PHONE, I FINALLY HANDED THE PHONE IN ON THE 25/09/2015 IN PERFECT GOOD CONDITION WITH NO DAMAGES TO IT.CELLC SENT ME BACK A QUOTATION FOR THE REPAIR WHICH WAS R800.00, WHICH I REFUSED TO PAY, PICTURES WERE SENT SHOWING ME THE PHONE DAMAGED, EVENTUALLLY AFTER GOING BACK AND FORTH, THEY AGREED TO FIX IT AS THEIR STAFF AND DAMAGED IT. I WENT TO COLLECT THE PHONE ON THE 02/11/2015 AND THE VOLUME BUTTONS ARE NOT PUT ON, THE TECHNICANS FORGOT TO PUT IT IN, SO I SAID I WANT A BRAND NEW PHONE, BECAUSE I DONT KNOW AT A LATER STAGE WHAT ELSE CAN BE WRONG WITH THE PHONE WHICH CELLC DAMAGED. I EXPLAINED I WILL CANCEL MY CONTRACT WITH THEM IF I AM NOT GIVEN A NEW PHONE , THEY SAID OK BUT I MUST PAYTHE FULL SETTLEMENT OF THE CONTRACT AMOUNT WHICH I REFUSE TO DO, I HAVE NOT EVEN USED THE CONTRACT. I AM TIRED OF WAITING FOR THIS TO BE SORTED OUT , I HAVE BEEN A CELLC CUSTOMER FOR OVER TEN YEARS AND I AM TOTALLY UPSET AND DISATTISIFIED WITH THIS