Return to sender You can find more information on items that have been returned to sender here. Why are items returned to sender? The item may either be prohibited or restricted. Visit our prohibited items page for a full list of these items. The sender may not have completed the electronic customs declaration correctly. If all the information listed below isn't included, it cannot be customs cleared and we have to return the item. The sender must include the following items in their electronic customs declaration: A valid HS/TARIC Code - use our TARIC Code tool to find the correct TARIC code for items A valid description of what's being sent The item's country of origin The item's value Details of postage, insurance and freight paid The sender's name and address The package or parcel's weight The addressee's name and address Where insufficient data has been provided, the receiver must contact the sender and ask them to re-send it while ensuring it complies with all the conditions listed above. Items can also be returned to the sender if the charges are not paid by the “pay by date" or the receiver has rejected the customs charge.