FNB systems are not working for their clientele!

I have banked with FNB for more than four decades! My 5 year R10000 fixed deposit has is now up and I gave instructions on their app to not to reinvest but to pay it into my FNB account. This has not been done and their app indicates that I will have to maintain this investment for another 5 years if I do not wish to face penalties! My calls to FNB have been frustrating and I am sent in a loop time after time without reaching the correct department / person that would be able to assist. Finally I demanded that someone call me back as my level of frustration has been exhausted. I was told that this is IMPOSSIBLE but she would call me back and transfer me directly. I was to ignore all the prompts and await the promised connection. The FNB music has now been playing for an hour BUT no connection!!!!! PLEASE CAN SOMEONE FROM THE CORRECT DEPARTMENT CONTACT ME IN ORDER TO RESOLVE AND REDUCE MY BLOOD PRESSURE!