Standard bank account de*****ed me

Hello Peter I'm Nomthandazo Mnguni I need your assistance about my standard bank account. On the 18th of September 2024 someone withdrawn my 4000 rand without my knowledge I was in Pretoria on the day but my money was withdrawn in Heidelberg then I reported the matter in standard bank Pretoria centurion branch, then they advised me to blocked the card and open a ***** case and promised to investigate the case and said I must give them 7 days to investigate the matter. So days goes by no answer 7 days pass so I quickly rushed to Heidelberg branch on the 04 of October where I opened the account to inquire about my case they gave a phone to call the ***** inquires. To my surprise they told me they have declined the case due to I didn't answer my phone on the 27 of October then I explained I didn't receive any call but they insist they called me,then the lady at Standard Bank gave me an email address to tell them why am I not happy about the case declined but the email keep saying blocked even today. I need your help to expose them to get my money back as it's rare to withdraw money without a card or cash send. Standard bank is taking us for granted as clients