Nedbank Send-iMali service

I transferred R500.00 to my wife cellphone number on 25/07/2015 using the send-imali service. However, when my wife dialed *120*001# to get a OTP to withdraw the money from an ATM she received a message saying they confirm that an OTP has been sent to that number. She dialed the USSD service until her airtime got depleted without getting the OTP. We tried the service again on Sunday and Monday without success, with our airtime running out over and over again. On tuesday I went to a branch in Ebony Park and saw that indeed the service was not working and they only thing they could do was give me a telephone to call Internet Banking call centre. The consultant hastened to imply that the problem was with the setting on my phone and I quelled that notion and insisted that he escalated it, which he ultimately did and gave me a USELESS reference number because no one has contacted me since. Today, 30/07/2015 I went to a Randburg Branch with the intention of reversing the transaction and they told me point blank that the transaction i did was between me and my internet banking service and that I had to wait for the transaction to expire on 01/08/2015. WHAT A PATHETIC SERVICE!