No assistance

FNB tipped of Capitec where my husband has another bank account and Capitec has frozen his account. I do understand that there is procedure when there is suspected ***** however this is not ***** and he has provided what Capitec has requested and Capitec is saying that FNB has not done what is required on their side. No one can give answers and we cannot access our money as a result of this. His phone is broken so if you could please email me if there is any response.