Drawback on goods exported by post: labeling and postal claim form determine deemed date of filing; deficiencies notified. Export parcels must be labeled 'DRAWBACK EXPORT' and accompanied by a quadruplicate claim (Annexure I) delivered to the Postal Authority. The customs officer's receipt of the claim from postal authorities is deemed to be the date of filing. Incomplete claims trigger a deficiency memo within fifteen days and are not deemed received; timely correction within thirty days results in an acknowledgement whose date is deemed to be the date of filing.