ACCOUNT FROZEN

I found out last year my account was used in fruad and I was never aware of it. I went to branch and they told me to investigate myself how it happened, up till today I am waiting for feedback all documents submitted and I still don't know how ***** happened on that account so how can your consultants tell me to investigate myself if they have ***** investigaters to do it. I am expecting funds soon and need and need my account fixed urgently as I waited too long for the matter and I can't delay this incident anymore I am sick and tired of no answers I want my account fixed.