Conflicting terms and conditions

The unit in my Vehicle has been defective for longer than 2 years (sending **** signals (panic alerts - the unit doesn't have a panic feature)), The reporting function has been turned off by Cartrack control room in March 2020. Multiple "appointments" was made for repairs/replacement of the unit......none of the appointments realized. In February 2022 i was informed by Cartrack that the unit has passed the 3 year warranty has expired, and I have to replace the unit at my own cost as the contract have matured (expired). Cartrack continued to debit my account with the monthly subscription - with the reasoning that the 3 year contract only matured/expire December 2022. So witch is it ? has the 3 years expired as per warranty ? Or not according to the call center ? Will the unit be replaced? or do i sit in a situation where should my vehicle be ******, I end up with more excuses and no recovery on my vehicle? Be afraid of Cartrack, Be very afraid.