3E+W+SA notice under paragraph 2 of this Schedule may require the information to which it relates to be furnished within such time as may be specified in the notice, and may require the documents to which it relates to be produced at such time and place as may be so specified; but the time specified in such a notice for furnishing any information or producing any document shall not be earlier than the end of the period of twenty-eight days beginning with the service of the notice.