What is the consequence of using a caddie in violation of the rules?

Using a caddie in violation of the rules can lead to severe penalties, including disqualification. The rules of golf are intended to ensure fair play, and using unauthorized assistance from a caddie can compromise the integrity of the game. When a player is found to be in violation of these rules, the most severe consequence often is disqualification from the event, particularly if the infraction is significant or intentional.

Disqualification underscores the importance of adherence to the established rules and promotes respect for the game's spirit. While warnings or penalties may sometimes apply for lesser infractions, in more serious cases, disqualification is a necessary consequence to maintain the integrity of competitive play. The notion of no consequence if only one caddie is used at a time would not apply to situations where rules are clearly being breached.