BackGround : I provided a real estate agent with XXXX cashier 's checks to help my son move into an apartment. Both checks were made payable to the apartment management company. The agent rented the apartment to someone else. I made an inquiry to my bank about the checks and they told me they had been paid. 
I contacted the apartment management company to ask them about the situation. They knew the agent, but had no knowledge of the checks and never received the funds. The bank was able to obtain copies of the checks and from them they determined the checks had been negotiated in a Citibank branch without having been endorsed on the back. 
I wanted to find out who had received the funds so I initiated a fraud inquiry through my bank. The apartment management company, the " Payee '', returned a notarized affidavit to the bank, which, in turn, contacted Citibank to ascertain who negotiated the checks, and into what account the funds were deposited. 

Issue : Citibank refuses to respond to the Fraud Inquiry from my bank. 
