Disappointed MTN service

I googled MTN's website to see if they offer deals to trade in your old Samsung Device for a new one. As far as I could see they do and you have to go to one of their selected branches. I also phoned their Customer Service, who could not help me and told me to go to a branch. I went to the Morningside branch and waited about 30 minutes to be served. Only to be told they don't offer the service anymore. Please train your Customer Service Agents and remove this info from your website if you don't offer it anymore. You wasted my time and money.