Isn't it illegal for hotels to skyrocket?

"Hotels that don't go to 200 yuan on weekdays have surpassed 1200 yuan on the day of the exam, and they have also risen too much." Recently, Xiao Wang, a citizen of Jinan, told the media that the entrance examination is just around the corner, and the price increase of hotels near his test center is too outrageous. The survey found that the phenomenon of "skyrocketing" of the price of the postgraduate entrance examination room is very common, and the highest price has even increased by more than 8 times. The hotel near the reservation test center saw that the price was cold. Third-party organizations lock in the housing in advance, which intensifies the shortage of housing for test sites. Regulatory authorities: it is difficult to supervise, and 65 hotel lawyers have been interviewed. Li Yunqing, a lawyer at Qilu Law Firm, said: "The skyrocketing hotel prices near the postgraduate entrance examination point are suspected to be illegal." According to China's Consumer Protection Law and Price Law: "Operators and service providers should abide by social morality, operate in good faith and protect the legitimate rights and interests of consumers." During the postgraduate entrance examination, the hotel's "willful" price increase violated the relevant provisions of the civil law on the principle of fairness, and hotels and hotels took the opportunity to kill customers, which obviously violated market ethics. Have you ever encountered such a situation that the price of the postgraduate entrance examination room has skyrocketed?