Misleading the customer

On numerous occasions I cancelled my contract last year with Adt. The last email I send to them was on the 19/10/15 which I requested that my contract must be cancelled. They went on the following month and debit the amount and I reversed it. In Dec they debut again and I reversed it again. A lady contacted me and ask me if she reduce the amount will I take the contract again so she give me a reasonable fee of 256 which went of in Dec after I told her to do it from Jan. I left it an to get a statement that say I owe for the month of Nov and Dec after I cancelled the contract. This totally unacceptable and *********, Adt is misleading their clients on how the contracts works. Please cancel my contract for real don't want anything to do with Adt!!!!!