From what you have written about you have a valid claim for the return of your entire security deposit if your former landlord refuses to give you the required itemization of the debits from your security deposit. Likewise, if the statute that your former landlord seemingly violated allows for treble damages for the statute's violation, then you can seek treble damages as well. It seems to me that you have a dispute best resolved in small claims court. However, you might wish to consult a landlord tenant attorney for further direction.