Is it legal to overcharge 150 yuan for legal advice?

Passengers who defile hotel premises or facilities due to improper behavior should bear the cost of cleaning labor reasonably, but whether 150 is reasonable should be determined according to the increased labor intensity, local economic development level and hotel service level. If there is no damage and loss, the charge of 150 yuan is obviously too high, and if there is no prior notice or explicit charge standard, it can be negotiated or rejected.