Tacker refusing to cancel the contract

I called Tracker in January to cancel my contract,the gentleman advised me that i will have to pay R400 because my contract had not yet expired and the 3 year period is not over yet,i disputed that because i had thought my contract was for a year,he then said he will investigate,i told him i will be stopping the debit order and he said i shouldn't and tracker will refund me should i be right and them wrong.The debit order (of R330) did go through month end and and Tracker now calls me and tell me the contract was indeed for 3 years and if i still want to cancel then i should pay a further R400,im disputing this R400 because i told them i was selling the car in Jan and as far as im concerned i did not need their services for February,so now they tell me i will have to pay for the February services either way although im not even using them?bare in mind there is not even a 30day waiting period,so why should i pay for February?As far as im concerned,if i owe Tracker anythin,then it will have to be R70,but a further R400 i will not be paying because this is just ****************,i also asked for my Agility to be cancelled and Yes,It hasnt been cancelled as well,BAD CUSTOMER SERVICE!!!