Is it right or wrong that hotels do not have the right to set their own prices for hotel products according to law?

Yes. Hotels have the right to set their own prices. If the price increase is within a reasonable range and the price is clearly marked, it falls within the scope of market regulation. If the increase is too large and even forces consumers who booked at the usual price to cancel their orders, it is suspected of exaggerating the price and is an illegal act. In fact, exaggerating prices is one of the price gouging behaviors listed by the state that must be severely cracked down on. In other words, exaggerating the price is actually a willful price increase, which is also an act of rip-off.