UNFAIR CUSTOMER TREATMENT

I HAVE TAKEN TWO CONTRACT PHONES FROM MTN GROBLESDAL DATE 12/09/2014 BOTH LG FLEX D958. ONE PHONE IS BEING USED BY MY SPOUSE AND I AM USING THE OTHER. BOTH PHONES WERE IN GOOD CONDITION WHEN I RECEVED THEM AND BOTH WORKED WITH NO PROBLEM.<br> EARLY JULY I THEN NOTICED THAT THE BACK ARROW /RETURN BUTTON ISNT WORKING ON THE PHONE WHICH IS BEING USED BY MY SELF , WHEN ALL ALONG WAS WORKING. <br> I THEN WENT TO THE MTN WHERE I HAD RECEIVED THE PHONES FROM<br> WHERE THE PHONE WAS BOOKED FOR SERVICE IMMIDEATELY ,AS THEY DO NOT HAVE REPAIRS AT THEIR BRANCH.<br> TWO WEEKS LATER AFTER PHONE WAS BOOKED I WENT TO CHECK IF IT HAD RETURNED. I WAS SHOWN AN EMAIL ,DETAILING THAT I NEEDED TO PAY R6663.06 FOR THE PHONE TO BE FIXED TO TOP IT I WAS CHARGED R330.00 TO BOOK THE PHONE FOR SERVICING<br> I ASKED WHAT WAS THE PROBLEM AS THE PHONE WAS STILL IN GOOD CONDITION , IT HAD NO SIGNS OF ANY PHISICAL DAMAGE AND THE SCREEN IS CLEAR NO MARKS.<br> THEY SAID THAT THERE'S A PART INSIDE WICH IS DAMAGED AND I WILL HAVE TO PAY <br> R6663.06 FOR IT TO BE FIXED .THE STAFF ALSO DONT KNOW WHAT COULD HAVE LED TO THIS DEFECT. BUT IT COULD BE A FACTORY FAULT.<br> <br> WHY I AM BEING CHARGED, MTN NEEDS TO BE LIABLE.<br> <br> UNHAPPY CUSTOMER