Contradiction and frustrated

My account was locked almost a month now, i went to the branch and they called the ***** department. I was advised that it's been investigated because of an investment group I had took up an investment with and was told someone will contact me before the end of the week but no one contacted me. I called their service centre and the agent told me to send 3 docs incl. Affidavit, then I received a response from another consultant with a longer list of docs I needed to send, in a day I sent all the required docs. After that I received a response from this consulted to say I need to contact the investigating officer or ombudsman if I wish to take this case further which I really do not understand because I'm the one being ****** by the people from the investment, secondly I sent all docs + transactions to prove that I was investing and there's a portion of my payouts that were not paid to me. And also no one is telling me why my account cannot be unlocked.