Closed account due to debit orders

I have been with capitec for 7years and its been great,firstly i would like to thank Brian and Kris who were helping me their service is excellent.now i closed my account with capitec due to D/O that i didn't not assign to,now i went to hear what can we do to stop that from happening again,Kris wanted to help but the lady infront refused telling him he should close my account and let me leave. i thought i could open another account because i closed mine because of valid reasons,i have lost R1300 already cos there was a debit order that was done without my approval..so Hello Peter please help me know what should be done with that lady who gave attitude instead of assisting me as a client