My FNB account profile has been blocked

Hello Peter, My FNB account profile has been blocked on the 16th March 2021 First National Bank due a payment from my a lady whom i sold car parts too.. Alene Palmer the investigator has been very unclear as to what she requires from me to unblock my account. She advised me to email her the invoice which i did . When I request what information she needs, I receive no answer. I sent her all legal documentation stating that it was a lady by name Nonhlanhla Manaba who bought some car parts from us and paid the money into our bank account. After being a FNB customer for a long time , I am being made to feel like a ********. I expect my account to be opened by end of business today, 16 March 2021 It is not in my position to know where Nonhlanhla Manaba got the money from to buy my car parts. All i know is that i sold her my car parts and she paid me and collected the parts.