Account blocked

Standard bank blocked my account and they do not communicate. My account was blocked over 3 weeks now and I was told to do an affidavit from the police station which I did and send it to the email address that was provided by them, since then there is no communication whatsoever and when i call them they keep on telling me different stories non of them is giving me a feedback. This is a bad experience with the bank that i have been banking with it for over 4 years.