Refused to assist me

Phoned vodacom to check my upgrade date. The agent said she will ask me security questions which I agreed to. She asked me the most rediculous questions I have ever being asked. These are the following questions: Are you married to whoever, a funny name that I cant remember and i said no, the next questions was Do i live in some address that I dont even know and i said no, who are you working, gave them the name of my current and previous as I have changed jobs. Next question, do i own a certain company and i said no. last questions do you have adt account, i said yes and she wanted to know from when i gave a date. Then after wasting my time answering these questions I was told that the system rejected my answer. Then she continued with questions and then after three more questions I was told that the system has locked me out cause i have answered the questions incorrectly. Really do i have go through this for just an upgrade. I dont know what kind of service is this....