Master Buick GMC

I brought my car in for warranty work. The service man NEVER called me back for my warranty work after I spent all day waiting for the warranty company to call the service man back. He kept telling me oh they will call back soon. I finally left with my vehicle and he said he would call me back once he hears from the warranty company. After a week of waiting, I called the warranty company and she said they called with 3 messages to the service man at Masters GMC. It’s now been a month and no one has called from the service department. When the service department took my vehicle for a test drive they went to McDonalds and left their trash in my vehicle. Terrible customer service at this dealership! I will never bring my vehicle here again!