Extremely bad service

My contract was due to expire in Oct and I submitted a cancelation letter in September for the month of Oct. I've been dealing with a lady by the name of Mpho Modisaetsi who is very poor in responding to emails, since the 1st Oct I've been asking for ADT to provide a date on which they will remove their equipment from my property and to date I'm taken from pillar to post and Mpho has been saying that the technical department will contact me yet no one has called. Today I spoke to Lerato Mokgwai from the technical department who told me that the person who is supposed to log the request on the system is in the office but not answering her phone. Can ADT understand that I do not need their service anymore and it's all due to their incompetence