BAD BAD BAD...

I UPGRADED IN JULY BUT I HAVE HAD TO GO BACK AND FORTH WITH THE SAME PROBLEM PERSISTING ON MY PHONE. IT IS THE FITH TIME NOW AND IT HAS BEEN WITH THEM FOR OVER A WEEK. THEY WANTED ME TO COLLECT AS IT ONLY NEEDED AN UPDATE. I HAVE REQUESTED FOR A NEW PHONE AS I THINK ITS ONLY FAIR. I HAVE BEEN PAYING FOR SOMETHING THAT I DIDNT HAVE THE PLEASURE OF USING SINCE. EVERYONE I TALK TO REFERS ME BACK TO THE OTHER AND NO ONE CAN GIVE ME AN ANSWER. I AM TIRED OF MAILING BACK AND FORTH AND WASTING MONEY ON CALLS. BEEN WAITING FOR A RESPONSE SINCE YESTEDAY AS THERE IS NO CONTACT NUMBER FOR THE REPAIRS ESCALATIONS DEPARTMENT. I RATHER WANT TO CANCEL AND DEMAND A REFUND FOR THE EXTRA AMOUNT THAT I HAVE HAD TO PAY SINCE THE UPGRADE.