De*****ed by own bank

Last year, you were instructed by FNB to put money aside from my account is it was being investigated, you did that without consulting me. Last week, you got another instruction to deposit that money back to FNB and instead you took money out of my account, explain why I shouldn’t report that to Ombudsman as being de*****ed by the bank that is meant to protect my money. Put my money back into my account - why have such an inconvenience from the very people who are meant to make our life easier?