Poor customer courtesy Halfway Ford Waterfall

Worst experience ever with Halfway Ford Waterfall. I went to the 2Nd hand car showroom and saw a Ford Tourneo that suited my needs, I must have walked around the showroom for about 10 minuets before a salesman (Mac) appeared, he went through the vehicle with me and I told him that I was keen to do the deal and I had a BMW 320 that I was trading In, The manager Clinton assessed the car and we agreed on a trade in price, i then told Mac that I would like my wife to see the vehicle the next day. I phoned him early in the morning and set up a time around 3pm for a test drive. Around 1pm Mac sent a Whatsapp to say the vehicle had been sold that afternoon, I told him that I was not happy as I had first option on the vehicle, I asked that the manager phone me and around 3pm he phoned me to say that someone else had come in, in the afternoon and bought the vehicle "because he had the money on him". Neither the manager or salesman bothered to phone me and inform me that there was someone else interested in the vehicle. No one phoned and I was not given the option to say whether I was interested or not. So sorry Ford I will never look at another Ford and will be sticking to BMW in future.