FNB the Worse Bank in South Africa

Hello I need your help . FNB blocked my savings and business account for no reason. I have been battling this by calling , emails and even went to the branch in commissioner street Johannesburg to get an explanation to why my account is blocked . They said there was a suspicious activities on the account and this is an account that has never got any complain even before till date . I asked them where is the complaints coming from because I never did any suspicious activities with the account . Now my money the accounts keeps getting debuted by FNB . Yet try blocked the account is that not wickedness and heartlessness?

I want my account opened immediately without any further delay