Fnb is the worse bank ever

My business account has been blocked since 2 November 2025, whenever you call fnb the investigator is not in the office, fnb cannot provide feedback, the complainant is known to me because fnb confirmed who the complainant is, they also Confirmed that no saps case has been provided, upon my verification I also have confirmed via saps that no saps case was registered but fnb still has the accounts blocked and undergoing an investigation even after we have provided them with all the proof that that complainant has confirmed to me and other people's accounts that's blocked due to this complaint she did not complain and that fnb is giving us incorrect information she further stated that her banker confirmed it's a glitch. So basically her banker fnb and her are all in cohotes with issuing a false complain has its a civil contractual matter why is fnb getting involved with that when all proof was submitted. How can her banker confirm it's a glitch that causes people's accounts to be locked.