There was nothing Jane could do about this rule.
In the past, there was a customer who had accidentally damaged a valuable treasure in the store but was unable to afford to compensate for it. Later on, the Heavenly Pavilion established a rule that stipulated that any violation of the rule by salespeople who took expensive items out of display cases without permission would lead to severe punishment.
Of course, it didn't mean that customers wouldn't be given the opportunity to take a closer look at the items. If the customers were really interested, the salespeople were allowed to invite them to the VIP reception room on the fifth floor to take a look after obtaining permission from a supervisor and making sure that the customers had the means to buy the items.