FNB Account on hold for NO REASON

Good day,

Today I learnt that FNB put my account on hold due to suspected ********** activities(I have done nothing ********** in nature. Only receive fund here and there because of COVID but nothing **********). And this happened without any notice at all. Was just at the ATM and it said that the transaction couldn't be completed on the account.

I have tried calling the investigating officer many times to give me clarity in the matter and how it will be resolved as I desperately need the funds and like I've stated above, I've done nothing ********** in nature EVER in my life. I can't get through to him and the lady on the help centre can't even put me through to him cause the line just disconnects when they try to. I did, however, receive a case number at least but it's of no use if I can't use it anyway.

PLEASE HELP ME SORT THIS OUT ASAP!