Terrible sales response

On Sunday we saw a car advertised online which looked perfect for us. We phoned the salesperson and he said it was still available and we could come and see it mid-week. We phoned him every day (sometimes multiple times) in the week to try and make an appointment. We received no response until we eventually got through to the dealership on Saturday (today), and were told the car had been sold. We are very disappointed with this total lack of service.