Shocking client service from Standard Bank

We banked a cheque that was unpaid and then apparently returned to the issuer. We have called the Sandton City branch and called the General banking line who left a message for the for team at Standard Bank Sandton to contact us. We need to confirm where the cheque was returned to.<br> <br> No luck three days later.<br> <br> Why would you treat a client so badly?<br>