We had seen a nice car, it came up on various site...

We had seen a nice car, it came up on various sites, indicated that we wanted to trade in a car. We were immediately contacted by telephone on Sunday. The question whether we wanted to send photos of the car that we want to trade in, delivered them. And then no more response. Contacted ourselves, it turned out that the car had already been sold a few days before or maybe we were still interested in another car of course not done. Unprofessional.