What regulation is required regarding customer complaints in salons?

Displaying the board phone number near the entrance serves to ensure that clients are aware of their rights and the protocols for filing complaints. This regulation is crucial as it provides customers with immediate access to the overseeing authority, allowing them to report issues or seek further assistance effectively. It promotes accountability within the salon and reassures clients that there is a formal pathway to address their grievances.

Keeping a log of customer complaints, having clients sign a complaint form, or resolving complaints within a specified timeframe may be practices that enhance customer service, but they are not mandated regulations in all contexts. The requirement to display the board phone number is specifically aimed at ensuring clients can easily access support, which is a fundamental aspect of maintaining hygiene and safety standards in the salon industry.