Westgate branch suspicions

I visited the Westgate branch in roodepoort near Standard bank and weird things have been happening since. First there was a sim swap done and money taken out of my account and my card details were used. I have never received a call asking me for details and no one has access to my card except the consultant on that day. I didn't make a big deal out of it and simply did a sim swap again and a new card. Please tell me how these *****sters now know i have money in my account and did a sim swap again as soon as money came into my account when nothing happened when i didnt put money in last month??? WHO IS MONITORING MY ACCOUNT?? I am not stupid, i know i was targeted because i am a senior citizen but i am not stupid, what guarantee do i have that my fingerprints were not compromised when i visited the branch and another finger print enrolled? Please investigate that branch because I have since changed my number but i will hold the bank accountable if mysteriously again a sim swap is done on this new number. I would really appreciate some feedback