Took knowledge test for instrument ratining. I walked out of the flight school with test result but without the seal. I just didn't pay enough attention, so please don't ask why. Took the checkride, nobody noticed that seal was missing, but owner wants original with seal to sign me off with my new instrument rating.I told him I never received it with the seal, but I guess they don't believe me. How can I get a copy? Do I follow what the FAR says and request it from the FAA. Do they have a record, since it was never mailed to them in the first place?

MDT