Rude service by Mandla in customer care

I am livid as I type this. I placed an order 13 days ago. They promise to deliver in 5-7 working days. Nobody is giving me straight answers regarding the delay of the order. Today I spoke to a rude and condescending consultant by the name of Mandla. He thinks talking over customers is the right thing to do. He arrogantly told me "Stop being dramatic" because I asked him to cancel my order seeing that they are failing to deliver my order. I need you guys to teach your consultants how to speak to customers because be definitely knows nothing about customer service. Oh let me not forget how I was being a bully by asking to speak to a supervisor. He hake! People will throw in terms they can't even define.