In this latest visit, I was told that a drop-off a...

In this latest visit, I was told that a drop-off appointment time of 10AM was perfect for a Tuesday. I arrived 9:45AM to drop off my vehicle for an oil change and screw to be tightened elsewhere in the car. I was told that the service would not take longer than 2 hours. No one in service could answer the phone all day and at 2:30PM I finally received a call back saying my car was not brought into the shop due to being "backed up", but was promised to have my car ready by 3:45PM. I asked if they just kept pushing my car back and handling waiting customers in the lobby. I was assured that was not it, but if they were backed up so much, why were the customers in the lobby different people from when I came in to drop off the vehicle? I arrive at 3:45PM to my car not ready, but it being ready around 4:30PM. I was to get off of work at 3PM, with no means to get home. I had to wait until 4:30, and it then taking over an hour in traffic to go home due to unorganized employees that could not manage time slots for appointments. Why tell me that that time is fine, and no means of transportation was available to get to work for a meeting I had or to get back to Mazda. However, "for my troubles", I received the service for free with a tire rotation I did not ask for, as the last time I came in, they told me I could not do a rotation and had to buy new tires because they were worn down, but the tires were not.I was told that my tires were wearing down and that they could not rotate my tires unless I bought new tires in which they would happily do so for roughly $600 (for just 2 tires) during the last appointment. What has changed now that my tires could be rotated? This place is unorganized and dishonest.