Rude sales contact centre agents.

I keep getting sales calls from very unprofessional consultants. After telling them numerous times that I am not interested. Today I had the very unfortunate experience of having to deal with Peter calling from +27 (10) ***, I answered my phone and immediately he speaks vinacular and I ask who he would like to speak to, he proceeds to become very condescending and says the owner of the phone. I asked him did he not receive training and requested to speak to a manager, he says the manager stepped out, I said I’ll hold, he lets me wait for two minutes and drops the call on me. I feel disrespected, harassed and turned off by the whole 1st For woman brand.