FNB treating me as a ********.

I was busy making some online banking transactions and FNB decided to block my account for *****. I am being treated like a ******** for spending my own hard earned cash. To add insult to injury I spoke to 7 different people, all who don't know what is wrong with their own useless system. My FNB reads my own fingerprint and I have done countless transactions online over the past 7+ years using the app. Now suddenly I am a ******** and no one can help me. I don't want to go into a branch with the covid virus, but neither my privacy or health a concern to FNB. they just care about the money.