EFT recall

Nedbank I made a payment to a wrong Nedbank account account from My standard bank account on the 12th of June 2018. I contacted my bank to do a recall the same minute. However they told me that it takes 3 to 5 Days. I submitted the required forms and after 7 days they reported back that there was insufficient funds in the ********** 524 Nedbank account and they Gave me the name of S Mhlongo and the phone number + ********** 2841. I took the matter to the police since the University was making a follow up for the funds. The police requested that I bring the two bank statements showing the payment from Standard bank and the Recipient Bank statement showing that he received the payment . The bank manager insisted She wanted a Subpoena From the Police but the SAPs on the other hand insisted they do not need to get a Subpoena for that matter and gave me an affidavit. The Bank Manager refused to assist and requested that she should get a case number but the SAPs also said they cannot open a case without proof that the money was received and used by the bank client. Nedbank Cannot reverse the payment and at the same time Nedbank Has cannot provide proof that the money was received and used. I need help to be able to payback the money to the university. The project has failed but the money has been locked in Nedbank client. Standard bank has closed the case and Nedbank does not seem to be interested in recovering the money.