Can they close African bank already

I took a loan online. the loan was approved. I got the SMS that money was in I should come collect the card. I did not even get to collect the card it was still with them when all the money was withdrawn from that account. I went to the branch and a case was open with the forensics ,that was beginning of march since from then I have never heard from them. Everytime I call they tell me they have escalated the matter again I will never hear from them till now. I went to the branch after the 1st debit was taken n told em I'm left with no choice but to change banks since Im already paying for money I ddnt get. The guy assured me I will be reimbursed they have had a situation like this n the client got their money back. I later got a SMS that my matter has been resolved. Went to the branch again showed them the SMS they told me in their system nothing has changed. M sending emails to the forensics team they read them n no response. The loan was 70 sumthing thousand now its over 100 m in arrears. How do I stop these people cause next they will blacklist me😡😡