Cartrack damaged my hazards

In July a guy called Fayaadh come to my house to put in the tracker. To whatever he was busy doing, he left th Hazards now working.. I didnt take note but when i was trying to use them, they are not working. I took the car to Toyota and they said the responsible person is the one who put the Tracker. I have been calling this company, spoke to him, he refuses to come and fix his mess. Th compay is playing hid & sick with me whereas i paid for that car... If they is no actions taken, i will publish it on the media, as well as including my lawyera.