Dubai International Airport Abuse Report

I had a cabin luggage bag that was taken as gate bag during entry. Within the luggage there was an envelope with 3885 euros cash as I am student studying in Hungary and was travelling from Dubai. This money was for my 6month rent and living. Due to rush, i didnt take out the envelope from the luggage as it was taken before the gate. Upon arrival, i got the luggage and had an exam so didnt check it but when i opened the bag, the envelope was missing and i checked everywhere but it wasnt found. I’d like to request an investigation for the same and see if it was taken from the luggage during transit. Thank you