Unfair treatment and poor client service

I am a FNB client for many years. I had a complaint with my monthly statement and visited the N1 City branch in Goodwood on 28 September 2018 to sort out the problem. The consultant informed me that my pricing profile was incorrect although I showed him the official letter that I received from FNB regarding my package and benefits ( I adhered to this by making sure of the minimum balance required). He then changed my profile without my permission (can provide you the consultant's name) and the result was that I then had to pay monthly fees. I lodged a complaint and after several mails the branch started to reverse my monthly fee every month. This was stopped in June 2019 and since then monthly fee is still deducted. I keep on with sending them mails (more than 20 from my side) but they stopped answering my mails although I received a read report each time. I feel that I am treated unfairly because on page 16 of the latest pricing guide of FNB they still make provision for the benefits for old clients who is on that package - from which I was removed without my permission nor did I sign a undertaking giving them permission to do so. Coenrad P C Groenewald, contact number ***