Rude Discovery agent cutting calls

A very rude agent called my number while i was not in the room. Call got picked up by my parent who is the one who pays for my medical aid, they literally know this on their system. When finding out that the one talking was not me the call was cut with no warning nor explanation. Literally the person talking is the one who they are taking money from though. The staff involved need to be heavily reprimanded because this was me in the process of going to a higher tier plan but they dont want to give good service... pathetic. Looking like its time to join a new medical aid provider