The design of crude oil treasure itself is flawed, and there are not enough barriers to avoid investment risks for customers, but it has done a good job of avoiding risks for banks themselves.
I hope that the similar products of China Bank can return to the customer standard in the future, so that the 270,000 won't be punished in vain. Fines are just a way for BOC to return to the business direction based on customer interests.
Elephants should be kept well, and ants can't die if they step on them.