Poor service

In Nov 2022 I requested a cancellation for contract to end on end Dec 2022. I was then promised heaven and earth and contract was reinstated in Jan 2023. In the same month of Jan my alarm went of twice on different occasions and was never contacted. Thirdly the promised in visibility was never delivered. I then requested that my contract be cancelled with immediate effect. The email was sent on 26 Jan and only today I have been contacted. WOW ADT you are pathetic.Stop sending me sms that my account is overdue as I don’t have a contract with you