Useless,pathetic expensive tracker!!!

Pathetic,useless service!! I cancelled this tracker because from day 1 when my vehicle was still at the dealership it took very long to get the contract documents and I could not even track the vehicle on their useless app!! I told the lady that am very unhappy with this tracker am going back to netstar!! When I called the tracker to cancel thry only removed the added services and told me to write a formal email to cancel the tracker and I did that but now they are sending me a useless email saying its a 36month contract and am liable to pay!! I am very livid as I cancelled this from day 1 after I receved my car!! Cancel this tracker as I will not pay any monthly debit orders as I moved to netstar! The consumer protection act allows customers a fair process to cancel whenever they are not satisfied with goods and services and should not face any post sale barriers and this right here is contravening the act!!! REMOVE AND CANCEL MY NAME ON THIS USELESS TRACKER!!!