Capitec bank has failed me and I want my money back

Hi On the 7th of August 2019 R170.00 was deducted from my account and it reflected online shopping which I have no idea of. I went to Capitec bank Bellville branch and asked the lady who was assisting me to reverse it and she said unforunfortunately she can't reverse it and I told her to atleast stop and block whatever it is. She said that she will stop it. Bare in mind I don't work at the bank and I don't know their processes. On the 7th of September 2019 R814.00 was deducted on my account again by the very same thing. I went to Capitec bank Vangate mall and reported the incident. They then destroyed my card and gave me a new card with new card number because they believed who ever was deducting money from my account knew my card number. It's clear tha the lady who assisted me in Bellville branch didn't do anything because this wouldn't have happened again has she helped me as promised. I was told to wait 14 days and come back for feedback. When I got I was sent back home with nothing and I was told to be patient while they are investigating the matter. Up to this date I'm being sent back and forth. Please assist.

Regards Neziwe