At present, there is no clear regulation or provision that restaurants can charge or cannot charge service fees. The price of catering industry belongs to the category of market-regulated price, and enterprises have the right to set their own prices (whether they can accept or not), but the premise is that consumers should be clearly informed in advance as service providers. At present, what the price department can supervise is not whether the service fee can be charged, but whether the service fee is clearly marked.

it is unreasonable not to inform in advance.