unhappy

we sold our house and moved out the end of January 2015, in January i contacted ADT for cancellation, which was done, i then asked about the billing in February and was advised (speaking under correction) that they will not bill me end of February 2015, which to my surprise i was billed. as per telephonic discussion with carol as well as emails upon emails, i was told a calender month was suppose to be given on or before cancellation. which when i spoke to Carol was told to me then, i have then requested that the telephonic discussion was sent through to me as proof, that carol said January would be my last payment, which she said she will will speak to her manager or team leader about (still waiting for that since forever) i have asked numerous occasions on feedback but to no avail. so that is why i am logging a complaint. i have also told her that if i am wrong and she told me the last payment would go off end of February 2015, i apologise but until i get the telephonic discussion (as all calls are recorded) i will not. this was the really the last option for me, but as i got no feedback from Carol, it had to be done