*********** staff with bad service

I have installed a Cartrack tracker device after being confronted by salesmen in the parking lot of Standford Road, Shoprite Mall.He explained to me that it will take about 10 minutes to install at a cost of R110 per month.He also said that after my first installment went off,I will be able to call Cartrack and ask them to tell me where my car is.He also gave me speed dail number for my cellphone which is *120*1026# which I can dail and Cartrack will phone me back within seconds to assist me with anything related to the cartrack tracker.I installed the system and after my 1st installment went off,which was not R110 as per the salesman,but a R138.I immediately called the help line and asked the operator to tell me where my car is.She could not locate my car and only then was I explained that I have a Flash unit,which means my car must first pass by a Cartrack maintainance vehicle,in order for them to locate my car,which is not why I've installed a tracker.I want to know immediately if my car was ******,where it is.The technician that installed the unit did not explain to me anything about a Flash unit,if he had,I would've never signed up for it.Who anyway in their right mind would want to pay for a tracker that cannot track a vehicle.When I explained to the operator on the phone that I knew nothing about a Flash unit,she said the technicians and sales people make their job difficuilt,as they now have to explain to customers the bad news.I wrote an email to the Cartrack customer service desk and told them my situation and asked them to cancel the system as it was sold to me under false pretences.They wrote back to me and told me I will be liable for a R1700 cancelation fee.I refuse to pay that,please help me hello peter!!!!!!