MTN USELESS NETWORK EVER

I AM TIRED WITH MTN EVERY TIME YOU COMPLAIN THOSE CONSULTANTS THEY DON'T HELP THEY ARE JUST RUDE EVEN FACEBOOK TEAM THEY DON'T HELP SO WHERE MUSE WE GET HELP NOW? YOU TAKE CUSTOMERS FOR GRANTED I BEEN COMPLAINING ABOUT MOMO 1 GB THAT EVERYTIME I BUY IT NETWORK GOES NO ONE BOTHERS TO HELP I END UP LOSING BECAUSE I DON'T USE THEM AND YESTERDAY I ASKED THAT I RECEIVED A KEY VOUCHER ONLY I WAS TOLD MY VOUCHER HAS EXPIRED THE US NOTHING THEY CAN DO