Cancelation

I saw that for the past 6 months my car Track premium was high and we agreed on R99, so I sent message on Facebook then they told me that I have 10% annual increase yet again I'm paying R230, I don't think that's 10% increase, I then told them that I want to cancel cartracker because the car is no longer being used due to its broken, I was told that I took a 3 year contract yet no one told me about that contract yet I don't even know for how much my car is covered for, now they tell me that I must pay R2600 cancelation fee yet they never helped me with anything

I'm really not happy about the service