Bad Service Capitec!!

On Friday 2nd September I received a call from 'The ***** department' at Capitec. The person I spoke to was Bongani. Bongani told me that their was a *****gulant debit order on my account. Told me that they not allowed to ask personal questions over the phone as Capitec will never do it, So instead Bongani gave me all MY information. How long I have my account. What the balance was in my account My name,surname and cellphone number. So I taught this guy is real seeing he knows everything about me. After asking me to open my app and do some transactions on my app to stop the debit order. I never gave him any information he knew everything. I did what he asked me and after a while my money was gone from my account. I immediatly went to the Capitec branch in Brixton. Where they assisted me contacted their ***** department. Telling me the money was redeemed at Pinetown. I must make a case and they will investigate AND maybe I get my money back. I also found out company is taking R99 everymonth a company that i dont even know. I do understand the procedures BUT what they could not answer me is that how is this possible that ********** had all my information? So my money was NEVER safe at Capitec?