Hello we sold our car to a dealer and bought a used car there in return. We were relatively late – shortly before the end still there, so the car seller only issued us a binding order of a used car. No purchase confirmation of the old car or order confirmation for the new used car. He wanted to finish it and then send us by e-mail. Since we were late there, we thought nothing about it. Nothing came, we listened. He said that today we would get this, then we could transfer the difference amount and he tells us when collection of new used vehicle. But now again no order confirmation came today. We only run after the dealer and do not know what is going on. Also the removal of our used vehicle was made late only on demand on our part. It is a large dealer with several connected car dealerships. What can we do now? Do you have a tip? Thank you in advance.