particulars of the goods as entered in the SADC Transit Document shall, unless the contrary is proved, be regarded as correct. d) The liability of the surety to the authorities of any Member State shall commence from the time when the SADC Transit Documents are accepted by the Customs authorities of that Member State, and shall cover only the goods enumerated in the document. e) When the Customs authorities of a Member State have unconditionally discharged a SADC Transit Document, they may not subsequently claim from the surety payment in respect of the duties referred to in paragraph (b) of this Article unless the certificate of discharge was issued erroneously or fraudulently. f) The transistor and surety shall be released from their undertaking to the Customs authorities of each Member State entered when goods carried have been duly exported or have otherwise been accounted for satisfactorily to the Customs authorities of the Member State concerned. g) Where a SADC Transit Document has not been discharged or has been discharged conditionally, the competent authority of a Member State shall not claim from the surety the payment referred to in paragraph (b) of this Article unless such authority has, within a period of one year from the date on which the SADC Transit Document was taken on charge, notified the surety of the non-discharge or conditional discharge of the document: Provided that where the certificate of discharge was obtained erroneously or fraudulently, this paragraph shall not prevent the authorities of a Member State from taking the necessary action against the person or persons concerned at any time thereafter in accordance with their national laws.