Dealing With Your Ocean Freight Vendor Import and export companies rely on transportation vendors for the delivery of their products. They use the services of these vendors and trust that the service provided is the service they has been contracted to be done at an agreed upon price.Government investigations and audits have proved a multitude of overcharges being billed to companies. However, it is impossible to completely regulate the services these companies provide due to the large volume of shipments. in Public bookmarkswith auditcontainerexportersfreightimportersinvoicelinemaerskoceanpostrefundsseafreightshipping