Contract not cancelled

<p cl***="MsoNormal"><span style="font-size: 10.5pt; line-height: 115%; font-family: Verdana, sans-serif; color: #555555; background-color: white; background-position: initial; background-repeat: initial;">In June 2013 I bought a car, at the garage I was required to get insurance since the bank was financing. With the ***istance of the garage, I took out insurance with Anderson insurance (not my insurer of choice), Anderson then said I must get a tracking device by Netstar (not my tracking device of choice), I specifically asked Anderson what happens when I cancel my insurance, they told me that when I cancel my insurance (with notice) it cancels my Netstar subscription as well, hence the insurance was paying my Natstar subscription and not my bank account. Come November 2013 I cancelled my insurance with Anderson (with notice) and moved to a different A&G (my choice), they said I must install a tracking device from Tracker (my favourite) which I did and still pay from my bank account. Today Netstar says I owe them, I tried to tell them what Anderson said to me but they don’t seem to get it, why would I really go install and personally pay a different company for the same type of service though? </span></p>