False advertising

I'm so angry and disappointed as I ordered a single stable stud door online and opted to collect at the store as their system told me they had one available. I drove from Krugersdorp to Alberton only to be told that the door is not available,it was a system arror as it was not updated... I'm so livid as I have people waiting for me so they can mount the door.This level of service is unacceptable