Capitec frezed my account without even notifying me of such

We have stockvel due to lockdown we can meet so we decided to send money via banks. I was paid on the 20th into (capitec). Today I needed to capitec to withdraw only to be told that my account is frozen because the account that paid me on the 20th is under investigation. Remember not my account but the one that make payment to my account of R1500. I am stranded right as I transferred money into that capitec account now I can't access my money there is R6000 in that account that I need to use for my kids as they are resume schools on Monday. Please I need help here is my capitec account *** and the fnb account is ***