I was contacted by the service center to bring my ...

I was contacted by the service center to bring my 2011 GMC Terrain in to have the high pressure fuel pump replaced due to a factory recall. I set up the appointment for November 23 2016 at 9:30am and when I arrived to have it replaced I was told they did not have any in stock and they would call me when in comes in to set up another appointment. This dealership called me to have this work done and did not have the part. What kind of business does that???!!!!! I'm still waiting!!!!!