Disappointed by FIRST NATIONAL BANK

I am writing this because of frustration, worry and anger. I bank with FNB and Friday morning when I was making payments transactions were not permitted and started chating with team bankers but failed to help, they gave me numbers I can call for assistance and I was sent from pillar to post no body had answers then at the end after waiting for quite some time on the line one guy gave me numbers of a lady who was said is the one who frozen my account, when I call the number it was not answered, I then decided to go to bank when I got there I explained to the consultant and gave him the number and the name of the person I was given to enquirer from and he said who gave you this number? You were not suppose to be give it and he asked to make a call he called , after he has made enquery he told me that my account is under investigation, is one of the 11 accounts that is involved in *****, there was about R100.000 that was about to be deposited. My question was for how long will investigation take place, should I go and open another account in another bank? He is not sure how long this will take and he is not advising me to open another account on another bank because they might pick that up and also freez that account then my question was how will I find out about the investigation progress? He said I will have to go to the nearest branch and explain the issue so that they call and enquirer, so I asked why wasn’t I informed about this and why should I be the one coming to the branch to enquirer about progress of investigation, I asked him to sent an email asking the lady to call me and tell me what is going on I need to know. What was frustrating more is that I was going home that day, suppose to ewallet my child who is in college money then all of the sudden I can’t and I don’t have answers. I am frustrated, worried and angry I deserve better than this I am devastated the weekend indoors trying to figure out what is going on crying, miserable made an appointment with psychologist for Monday. What a dissapointment from such a big bank ???????