McCarthy Chevrolet of Overland Park

Last time I will ever return, I've had issues in the past with this dealership and this last experience was no different. I made an appt to check my car in for an oil change on Thursday 1/5 at 7 AM, also noted on the appointment request that I had a service brake assist and stability track light that kept coming on. When arriving I was told that the earliest a tech could look at it would be Saturday morning (why even set an appt?) I asked if I could bring it back on Saturday as I need my car. I was told no that this would be a liability since there is now a ticket open and issues with the vehicle. I agreed to leave the car and asked them to look at it ASAP and to keep me posted, then walked across the street back to work. I didn't hear anything Thursday or Friday so I texted the number for an update Saturday morning, no response from anyone. I texted again and called and left a message Monday at 9 AM for Chris, no response. Called the main line again at 1130 Monday and asked for Chris, was fed a bunch of BS that he actually wasn't working Saturday and the car didn't get looked at but he had a tech assigned to look at it Monday afternoon. I receive a call around 2 PM Monday afternoon saying before the tech can go any farther we need to replace the battery which would be $358. Late Monday they call again saying the car would be ready for pick. I was without a car for 6 days and got charged $485 for a battery replacement and an oil change. The customer service, communication, and entire process is a joke. If your shop is behind and you cannot diagnose a vehicle when an appointment is set and you do not offer a loaner car you need to stop accepting appointments. This dealership is close to my office and was convenient for me to service my car as well as my wifes', I will never return again.