*********** STAFF - WRONG BILLING

They called me due to my contract comming to an end and I was due for an upgrade. Spoke to a Lady on Whatsapp from MTN regarding the matter i clearly said "I just wanted to inform MTN that I will not be upgrading and they should please not let my contract renew. I want to move to sim only deal please" I then gave the sim only deal I wanted and asked "So you will do the migration now, I will pay my contract normal amount until December and only from January will I pay the 335?" She then said Yes correct. This month GUESS WHAT - I WAS BILLED FOR MY CONTRACT AND SIM ONLY DEAL!!!!!!!!!!!!!!!!! Ive been on the line for 3 hours with MTN being bounced from billing - they say they cant do anything then they transfer me to sales, they say they can do anything, it been done I must just lodge a complaint and then they can have a look at it. The level of incompetency in this company!!!!!!!!!!!!!!!!!!!!!!