Profile keeps getting blocked

Every few months my African Bank profile keeps getting blocked. I'm not sure if it's something I am doing wrong? It's frustrating because I need to keep calling in and this time when I did call in I failed my verification. So I need to go to the bank because of your pathetic service. I actually feel like cancelling all my investments with African Bank as you guys are really useless. I need to go to the bank to unblock my profile because of your "security policy". Also I was unable to withdraw my money from my 32 day notice from the app so when I tried logging on to my PC after the 3rd attempt my profile got blocked. I would phone in and I would always get assisted however this time the agent kept making some excuse. Wake up!!!! What more does the bank want from me? You already have my money!!!!!!