Unprofessional and rude client care agent

Today I call the vodacom customer care to change my current prepaid to contract or get a data only package as I felt am using a lot of money on data and the lady I spoke to called Thina was very rude and unprofessional as I told her the package I am interested on that was offered to mh colleague the previous month and she said they don't have such so I asked to speak to her team leader and she said the team leader does not know anything about data packages and she is the one I must speak to as she sells these products dsily, when I then emphasized that I wanted the team leader she dropped the phone on me.