Poor Service from the Call Center

Just Phoned in to check when my contract expires.............unable to assist because I failed the security questions. One of the questions was what my email address was & I failed. I gave them basic information like home address etc and they couldn't verify me. I live on a farm outside Parys and there is no office to assist in Parys so my nearest town is Vanderbijlpark which is at least 45 minutes away. The app didn't even work the first time i tried it. Human or Ai cant seem to help. All i wanted to know is when my upgrade is or the way i feel now when can i cancel my contract if Vodacom cant help me sort out such a small issue.