my serious mistake

I made a very serious mistake ,and my mood is very awful.This afternoon,one of our client called me and informed us that our agnet  have already released cargo without collecting our HBL. 

I review all my e-mails,and found I mis-leading our agent to release cargo without presentation of HBL.Now our agent permise to help us to contact CNEE ,asking them to pay for shipper ,but if they are not willing to pay cost for shipper ,i will punish ,even lost my job......too bad.

Throught this case ,i believe i learn more and i will pay attention to this mistake .One more thing i can do is do my best on my English .