Standard Bank UCount ****.

I received several e-mails from Standard Bank stating that I must redeem R15,800 into my UCounts. I completed the required detail and was send an one time pin to my mobile phone. I submitted it to Stanford Bank. The next thing I noticed R500 MTN airtime was purchased for someone which I don't even know. This was done without my consent. I immediately changed my password to prevent more money disappearing from my account. I reported the incident to Standard Bank's ***** division and to my local branch manager but haven't received any response. I am now struggling to get this transaction canceled and the money back in my account. I believes that this is an inside job. As a client for almost 50 years I am disappointed by the way this matter was attended to.