Pathetic agent with disgusting attitude and no customer service at all

Absolutely pathetic customer service. I've worked in call centre 10 years ago and i know for a fact, the agent should never argue or give a client attitude or even mention that it's their mistake. The agents of today is hopeless but they only doing it because they need the money. I called in last month and spoke to a female lady regarding my cancellation of my contract. She advised me not to cancel but i wasnt going to change my mind. She said she will call me back before black Friday and give me special deals. I wasnt happy when she called and asked her to cancel my contract which is still in November. She didnt send me an email or sms. I call again today and spoke to Brian Nbatha who says its my mistake and giving me attitude and rolling his eyes over the phone for me. We were aguing which made me more IRATE. Listen to your calls. He even twisted what i was saying and didnt understand what i as saying. Since when do you validate someone's details twice after youve helped them already. Then also, saying i will be charged next month, which is January which didnt even make sense if im cancelling now and my last payment is month end. Agent definitely needs communication skills including how to deal with conflict or an irate client. His pathetic and i give him a zero for everything.