To verify the Exchange D/O mismatch error points.Instead of a check with the contact officer or C/S to contact other people.That causes misunderstanding in Exchange for D/O, the pose up Demmurage.
To check swap D / O error on the spot checks on staff rather than consecutively or C / S to another contact , which causes misunderstanding in exchange for D / O, and then causing the Demmurage.
Check the currency D / O no mistake the instead of check with staff at consecutive or C / S to contact the other which caused misunderstanding in exchange. D / O and causing the Demmurage .