How body shops trick people into getting the repair job

Here's a little trick we used to do back in the day-

Sometimes, the person who wrecked will say, "I already have a body shop". And the chaser will say, "that's OK, let's just let them tow it to get the car off the street, you can work that out later."

The next day, the body shop calls the insurance company, posing as the customer, saying, "go write an estimate and let them fix my car." Then, they call the customer, posing as the insurance company, saying, "let's let them fix the car because they are a good body shop and we do a lot of business with them."

The deal is done and the car is getting fixed. Cha-ching.