The Supplier shall submit full supporting details of his application under Sub-Clause 8.4 (Extension of Time for Completion). Except that, if the Supplier cannot submit all relevant details within such period because the cause of delay continued for a period exceeding seven (7) Days, the Supplier shall submit interim details at intervals of not more than 28 Days (from the first Day of such delay) and full and final supporting details of his application within twenty-one (21) Days of the last Day of delay.