My younger brother was rear ended at an entrance to a parking lot. Before turning into the parking lot a man hit him from behind, so they both pulled into the parking lot to check out the damages. My brother only took the man's first name and phone number. He called the man for his insurance policy and the man does not want to give the policy number to my brother. He wants to pay for the damages out of pocket. Yes, my brother did agree to this at first, but his a new driver and was probaly nervous about the accident at first. Any advice please...