Horrible customer service! I've been trying to ge...

Horrible customer service! I've been trying to get someone in Service & Parts to order a part and then bring my car in for almost a week, but can't get anyone to help; I've been passed around to multiple departments and then placed on hold for 30+ minutes. I've left messages for my service adviser, and still no call back. I've been a customer for over a decade and this is as worst as it gets.