Shocking management behaviour

Extremely bad experience with webuycars epping. Multiple times trying to put a deposit on a car with no luck. Multiple attempts with 3 different consultants to enquire about a car, 2 consultants refused to answer their phone or return my calls. The 3rd consultant refusing to acknowledge the price issue from their website to what they have listed on site. Finally arranging a test drive with a consultant, get there and the consultant trying to find fuel even though he knew I was coming. Eventually getting fuel in the car, and consultant not know the electronic issues with the car. Anyway eventually get on the road. I don't even make it down the road before the car stalls and completely cuts off. Manage to resolve the issue, car won't get into any kind of rev range before the issue reappears. So I was not able to do a proper test drive. I speak to the manager to see if they are able to negotiate a price on the car given the car does not start and not able to be test driven. Manager tells me I'm not the right driver for this car and treats me like absolute **** even though I'm there to buy the car. Pretty shocking attitude from a manager of a dealership.