What’s more, customs offices in some countries or regions require the importer of record to provide a particular form of identification before releasing a shipment. You may also be required to provide an identification number such as a Unique Identification Number, CPF, or Tax ID.
To ensure the courier(e.g. DHL, UPS) can deliver your goods in the shortest possible time after entering your country or customs union, the courier may pay the customs authority on your behalf for any duties and taxes that are due on the goods. Once the duties and taxes are fully repaid to the courier, the goods will be delivered to you.