MTN DOES IT AGAIN, PATHETIC SERVICE!!!

AFTER PAST EXPERIENCE WITH MTN PASSING THE BUCK AND REFUSING TO REPAIR A PHONE , I STILL STUCK WITH THE SERVICE PROVIDER , WENT TO THE GLEN MALL YESTERDAY TO RENEW MY CONTRACT AND THE SALES ASSISTANT INSISTED ON CHARGING ME FOR A SIM CARD THAT WAS FREE DUE TO THE FACT THAT IT WASNT LTE AND I UPGRADED TO AN IPHONE THAT REQUIRED A NANO SIM. I THEN SAID IF THATS THE CASE , ID RATHER CANCEL THE ENTIRE CONTRACT WITH MTN , SHE THEN STATED ITS FINE , PLEASE CALL 808 AND DO SO. IS THIS HOW YOU TREAT CUSTOMERS ? DUE TO THE BAD EXPERIENCE IVE ALREADY HAD AND YET I STILL STUCK WITH MTN?? IS THIS TRULY CUSTOMER SERVICE? DO YOURLL VALUE US AS CUSTOMERS? BY WANTING US TO PAY FOR SOMETHING THATS SUPPOSIDLY FREE IN MY CASE??????