To give you a general summary, As you have noticed regarding the shipment processed with you. Give me make clearly working process on the shipment processed.
1. Submitting to you with “Packing list” with reference data loading goods from your side.
2. Submitting BL and require you to verify and waiting for your confirmation ( without your confirmation, I would not confirm any information in BL ).
3. Payment Process ; Once we get the confirmation from you, then I could confirm all information to the shipping line. And any payment for the release a document from shipping line of the line should be done after you give me your confirmation.
For booking with Maersk line, you can make amendment information before the vessel is sailing with no charges. Even you want to make any amend after vessel sailed, It will come with charges.