The process when a player illegally touches the ball multiple times in volleyball is called double contact. This violation typically occurs during a set when a player's hands do not contact the ball simultaneously, causing it to spin or change direction unpredictably. The rule is enforced to maintain fairness and skill in the game. If a double contact is called, the opposing team is awarded a point, and the serve is turned over. Referees closely monitor each player's actions to ensure adherence to this rule.