BAD ATTITUDE FROM CALL CENTRE AGENT

I have been with ADT from 2007 or 2008 and I never get any communication except whe my account is in arrears because of the increases which never get communicated to me. No post no email no statements. Same thing again this only statement I got I because the premium increased & no one bothered to let me know, except now with the overdue amount. A call Centre agent Silas Mashimbye finally called me back after I sent an email & was very rude when I asked to pay the same amount because I have an email from the manager confirming my subscription will not increase. When I tried to explain my request for reduction he kept putting the phone on side I could hear him laughing with his colleagues probably telling them what difficult customer I am. I felt really disrespected. I really don't have a reason to keep ADT I am probably the only house with ADT in our area. Tactic response has taken over the years & have been offering me lower fees since I own my ADT system bad wouldn't need to buy one. Your call Centre agent is rude, disrespectful and doesn't know how to speak to your customers. I am about to cance my subscription.