Cars always reserved

I m disappointed in We buy Cars Richmond branch. I wanted to buy a BMW 320i which was still available. I called their call centre and was told the car is still available. And their call centre phoned the branch to ask the sales rep to give me a call. Upon receiving the call only to be informed that the car is reserved for someone else. It's very unprofessional from them. It looks some of the sales reps have their people who their want to sell the cars too.