Anyone has Bad experience with car sales advisor?

The SA keep want push me with tint, coating, ppf but I told him I want the cheaper one. Still ok one after paid down payment, attitude change and not responsive.

I still haven't collect the car... Will he do anything to my car? I feeling so bad with this kind of service.

Usually car tint can get FOC if you nego with SA before make down payment. Why pay when you can get for free?