judge me in the most unbiased way

this is harassment:

a few months back, our student council had a project... everything went well, and i even submitted the liquidation report...

at the end of the school year, we were summoned by the dean's office to submit the liquidation report for the said project... they said that we did not submit it... i was offended because it's my honesty and integrity that they're questioning... we tried to prove them wrong by presenting a photocopy of the liquidation report submitted (i never submit a report unless i have a photocopied version), but they said that it does not prove anything since there is no "received" stamp... my rebuttal was "they never stamped on my photocopied reports!!", now if that is the case, then why did they not say that all of the reports were missing...? now my good friend cannot enroll this coming semester because of this unresolved issue... another thing, whenever we talk to them, they just say "bahala ka" or "it's not with us"...they don't even try to listen! what on earth!?

be the judge, who's fault is it?