i phone 4

I HAVE A I PHONE 4 ON CONTRACT WHICH I RECEIVED ON THE 1 NOVEMBER 2014 WHICH I ONLY HAD IT FOR 25 DAYS WHEN IT FIRST CRASHED. IT WAS IN FOR REPAIRS FOR ABOUT 5 MONTHS AND WHEN I RECEIVED IT BACK I HAD THE PHONE FOR A WHOLE MONTH. IT SHOWED THE PHONE NEED TO BE UPDATED. I DID TRY BUT THEN IT SHOWED IT IS UPDATED. MY PHONE CRASHED A FEW DAYS LATER. SINCE THEN IT IS NOW ABOUT 4 MONTHS AGAIN. I WAS ASKED TO TAKE OF MY ID CLOUD WHICH I DID DO. I TOLD THEM THAT I WANT A NEW PHONE BUT THEY TOLD ME IT IS FOR I PHONE TO DECIDE. I WENT TO CHATS VODACOM DURING THE WEEK AND INSIST THAT THEY PHONE I PHONE I WANT AN ANSWER. THEY TOLD ME THAT THE PASSWORD IS