Digusting and mis leading service from MTN

I have been a loyal MTN contract customer for 9 years. I have been due for an upgrade since July 2018. I currently have two contracts with MTN. I have been trying to upgrade to the S9+ advertised for R599 since February. The MTN stores have been utterly useless and do not seem to know what MTN Direct has in stock. After contacting numerous stores and the MTN online shop as well as the 135 upgrade number, no one seems to know what is occurring. I then receive a call from what i thought was MTN but turned out to be Rewards Co a company out sourced by MTN. The lady promised me a S9+ and that they have stock. It has been a week now. This experience has led me to want to cancel everything with MTN and never go back. Also it is deceptive to advertise something you do not have stock off. The line that the S9+ is discontinued is deceptive and misleading as well as then why are they still advertising this product.