They debited my account twice. Poor service

I was offered by a cartrack agent at Theku Plaza to install a cartrack on my car. The reason that compelled me is that they said it was cheap and is going to decrease my insurance primium, but later to find tnat they gave me a deal that does not decrease it. 3 months ago I emailed them asking to cancel but they told that R1700 will be raised ob my account since I am under a contract of 3 years of which she did not tell me all of that. I got so angry and felt like I was ****ed. The lady that receive my email sent me a cancellation form since I wanted to cancel. I did not reply and she cancelled the policy. I ask her why she cancelled without even calling me on the phone and because I did not sign the cancellation form that she sent and she said i did not reply early. After my complain I call and a certain guy explained everything to and was friendly.

Recently I e-mailed one of the a certain lady at Cartrack to know why they double debited my account in 1st of August. I sent about 3 or more emails on different dates. I wanted to reverse it. Still have not get any response today.