Disgusting Caller Agent Service

I have been called by this company without my knowledge my information was shared with them and when I told them I was not interested the agent very aggressively asked me why I had requested a call back which I had not done, I told him there was no need to be rude and that I was not aware of this request and he proceeded to asking me the same question the second time, repeating himself very rudely. I will never buy a product from this company I am disgusted with the way that the calling sales people treat potential customers.