Answer:
Referral
Explanation:
Referral is the term which is described as the act or way of telling someone or a person regarding the positive features or attribute of the business or the person, who is being referred by the person.
For example, referral is telling someone or person that the certain business or the person having a good product or the service, and then that person visit the place.
Under this scenario, Tom referred Tudor to contact them regarding the new game. So, it is an example which the Judy uses referral method or way with Tudor.