Cannot delete leave entry

we have a leave entry entered through P07620 for 2 non consecutive days (Feb 28, March 15) . These were approved through Manager Timeentry (P051125) approval. The Feb 28 has been pulled and timecards were created. But for Marcg 15 it is still approved since we have no payroll yet. We need to delete Marc 15 entry but we cannot delete with error message  "Cannot Modify REquest) and "Leave entries approved in Time entry cannot bev updated in ESS". How do we delete this? We havec tried deleting in Time entry but it is disabled and also in Leave management,