Thanks for your quick reply.
For last order, we had no problem at all.
But this time, I received the attached letter from agent in Korea.
It means that you asked your agent about the switch B/L after the goods already arrived at Haiphong port in Vietnam.
That’s why they charge the penalty. They can’t change the information about the shipment which is already arrived.
They told me that you should inform your agent the switch B/L before the goods arrive at Haiphong port.
It’s too expensive to pay it. I checked the penalty again. It’s exactly $336.00.
Please check and advise me.