They do not care to listen.

The service I am receiving from Hyundai is really distasteful. I am not being heard. At all and feel so hurt. This is my first car!!! 😭😭😭 I have sent them videos showing them that the break lights are switching on on their own. They insisted I change the battery but again today the car is not switching on because the battery is low!!! I told them changing the battery was not going to fix the problem but they insisted. I don't have to go through this. They are unwilling to assist really. All that matters for them is me paying for parts of the car that do not need replacing. The issue is the break lights!!! No one wants to listen. No one wants to fix the main issue. What do I have to do?