Unacceptable service

I spent 22mins on the phone speaking to different consultants regarding cancellation of my contract as it is the end of my cellphone contract. No one deserves to spoken to like the way Adam Hendricks spoke to me. He was sooo rude and spoke over me. He did not even give me a chance to express myself as l was unhappy. He doesn't deserve to be called a customer service rep because he offers no customer service AT ALL!!!!!!!