No username and password to install the app.

I bought a car in October last year and the dealership recommended car track, it was installed on the car then. The car is on my company name and the details I was using changed and I’m now I’m struggling to get them to update my details and I don’t have access to the app I can’t locate my car , this is a worry for me because my car is a risky car (Ford Ranger) they keep sending me back and forth and nothing gets done.