Please write a detailed response that discusses why this submission is late, any efforts you made to prevent this situation and why this proposal should be granted a late submission. What you supply here will be auto-populated into a formal request to the VPR if approved by the ADR, so please make sure the justification is complete and compelling.
Note that the VPRs office has informed us that approvals for late submissions will only be granted in "extreme situations". While details of what constitutes an "extreme situation" are at the discretion of the VPRs office it is in your best interest to make this as compelling as possible.