The date of receipt of the application provided for in section 61-04-03 in the commission must be noted on the application. If the application is defective as to form, incomplete, or otherwise unsatisfactory, it must be returned with a statement of the corrections, amendments, or changes required, within thirty days after its receipt, and sixty days must be allowed for refiling. If the application is corrected as required and is refiled within the time allowed, the application, upon being accepted, must take priority as of the date of its original filing. Any corrected application filed after the time allowed must be treated in all respects as an original application received on the date of its refiling. The application may be amended by the applicant at any time prior to the commencement of administrative action by the department of water resources as provided in sections 61-04-05 through 61-04-06.3.