Threated by Saya Recoveries agent

So I receive calls from Lehlogonolo, she is very angry and stupid. This girl calls me before 8 in the morning to insist that I owe mtn. She harasses me and its no longer funny. The debt she is talking about has prescribed long time ago, I told her this but she keeps on hoping that I will change my mind. I want to talk to her supervisor, she refused to let talk to her supervisor and instead tolde that she will deal with me? What the *** is that? Is that what the company does to customers? Deal with them? Why do you hire such angry people? I want a full report of what happened to this ****.