(iii) he despatched at a post office a letter bearing the address of the Office and containing a cheque within the meaning of Article 5, paragraph 1(c), provided that the cheque is met, and
(iii) da je na pošti oddal pismo z vnovčljivim čekom v smislu pododstavka (d) prvega odstavka 5. člena, naslovljeno na Urad, in