Bank for Steve??

I have two accounts with FNB, one Platinum and one Gold account. My Gold account was overdrawn and FNB has been deducting money from my platinum account to repay the overdrawn account till I finished paying it. when my Investment Account with FNB matured I nominated for the lumpsum to be payed into the Gold account so that I can start using is as well. When I tried to transfer funds from the Gold to the Platinum I could not, so I went to visit a branch. I was informed that the account has been frozen since I have defaulted on my Smart Device. What makes me angry there is always cash on my platinum account, why does not FNB Smart Device debit the money from that account, as they have done so in the past without my concern and I dont even question it? I think FNB is just a bank for Steve, If I dont get my lumpsum that I deposited I am closing every account I have with FNB and move banks#highly irritated#