Standard bank not paying back funds after error

I accidently paid money into a wrongful Standard bank account from a FNB account. Within 3 working days did I submit a recall of funds through FNB. 8 working days later I received a response that Standard Bank is unable to repay the funds. Standard bank took R32k (according to wrongful recipient) for her debts. The recipient then spent about R10k (according to wrongful recipient). This means that a balance of about R15k should still remain in the account but Standard bank is not paying it back. I am unable to address this matter directly with Standard Bank and FNB can only recall requests. So at the moment I am nowhere, no one is helping me, no one is offering any help! my hands are tied and at the moment I am in for R57k debt that I need to pay back because of this error. It is unfair!