(iv) the applicant and/or his representative has failed, within the period specified by the grantor to supply any information requested by the grantor;
(iv) os bydd yr ymgeisydd a/neu ei gynrychiolydd wedi methu, o fewn y cyfnod a bennwyd gan roddwr y grant, â darparu unrhyw wybodaeth y bydd rhoddwr y grant wedi gofyn amdani;