Article 7-(3). If a person who has been favoured with the postponement of the collection of national tax and disposal charges for the delinquency of payment of such tax in accordance with the provision of Article 7, Article 31-(2) paragraph 3 (including the case where it applies mutatis mutandis in Article 31-(3) paragraph 2) or the Corporation Tax Law and other laws comes under any of the following items, the Government may cancel such postponement of tax collection and may collect the whole amount at one time. In this case, the Government shall be required to hear the explanation of the person who has been favoured with the postponement of tax collection, except for the case where a rapid disposal is needed;provided, however, that, this shall not apply to the case where such taxpayer does not make explanation without good reason: