i do recall the day you were in and it was fairly busy. A standard oil change takes roughly 30-45 minutes to properly complete with a safety inspection. Generally when the service is complete I will come up and talk to you about any issues found on your vehicle. Unfortunately that particular day I got stuck on an extended phone call and couldn't come up. I'm sorry you had a bad experience with us. I will do everything in my power to make your future visits more enjoyable. Thank you for your business.