Blocked unattended account.

Absa opened a case to my account because they believed it was involved in *****y activities. I on ther side had no knowledge of this and i need my account back but im not assisted. My account has been putted on hold for a while now but no phone call no nothing . i dont know what to do because my way is paved. If this review will reach their offices . can i please be assisted in this matter my Account number is ***