UPDATE OF DETAILS... !!

I am really disappointed in Standard Bank, I have asked on multiple occasions, each and every agent that has spoken to me promised the same but still this issue has not been resolved. You are sharing my personal information with a third party. I NEED YOU TO PLEASE DELETE OR REMOVER ********** 803 from your system. The only number I am using is ********** 581. You are smsing and calling ********** 803, THIS NUMBER BELONGS TO MY SISTER.. IT IS NOT MY NUMBER. I have been requesting this update in details since MARCH 2017. Is there no one competent enough at Standard Bank to REMOVE ********** 803 from your database completely? Please let me know for how much longer should my sister forward messages from Standard Bank and receive phone calls. PLEASE UPDATE MY NUMBER FOR BOTH SMS AND VOICE COMMUNICATIONS. ********** 581. PLEASE!!!!!!! This is so frustrating!!