Difficult bank to use your funds

I had a very disappointing and irritated moment with fnb indeed, On the 12th of may 2025 I went to the menlyn main branch with my client to make payments to my fnb account from fnb account of the client ,all verification was perfomed from the client site, However when funds appeared on my account the following day i received message that my account is been put on hold, I called FNB funds verification department to explain that funds were received for services provided to the client and requested the client to provide confirmation letter that he paid me for service rendered then forwarded to FNB. even now i did everything needed from my site but my funds are still on hold. I can't be able to function the day to day to my business. I also asked Fnb to confirm payment with the client and the respond is that they can't according to POPI act. So must i suffer unreasonably for your incompetence . The matter need to be taken to court on urgent basis, cause i can't pay some employees.