fnb is unprofessional

My fnb account was frozen,because I had issues with one of my client who open a ***** case against me.but I refunded my client who opened the ***** case against me,so the fnb ***** department said to me "in order for them to unblock the account,my client should make an affidavit that says I have refunded her the amount of money that she paid to my account"we both made the affidavit ando emails it to dehan theunissen who is always unavailable.this has shown me how unprofessional fnb is.we have done everything that they asked us to do now.but still my money is frozen.now I can't bury my mother