As you may know, you must include 1 shipping, pro forma or commercial invoice (CI) with the shipment and hand over 4 copies to the driver who picks up the parcel. The driver delivers the invoices to the transit depot office, where they are processed for export and import customs purposes.
To minimise the risk of delays we recommend specifying the tracking number on the invoice included with international shipments. You may even write it by hand. We have found that the invoice may get lost during transport by international service providers such as TNT, DHL, Fedex and UPS because the office is unable to link it to the correct shipment. This causes unnecessary delays. Despite the fact that this occurs for only very few shipments, we still want to let you know about the method that minimises the risk of delays.