confirmed booking only to arrive and be turned bac

I received a recall communication on the car last week Wednesday I immediately contacted the branch to book the car for today I emailed Annelize and she confirmed to me to bring the car today I took time off work woke up early when I arrive she told me they out of stock parts ran out yesterday but she failed to notify me how can renault contact us clients to bring cars through before making sure branches have stock am very disappointed about the level of service I received from Annelize she asked me to call and check after a month or wait for my service which is in July