HRA claim while filing taxes

Asking for a friend who is not on GV: Hi, while submitting HRA proofs, I forgot to attach the previous rent agreement which covered the first 5 months of the year. As a result, the team has come back and only approved hra claim for the period covered in the current agreement. They are saying there is no way for us to reupload additional proofs (previous agreement) for company-level hra processing, and that we should claim these remaining hra savings while filing taxes. Has anyone done so before? What is the process? Please advise, thank you.