FNB App

For more than a week I have been engaging FNB on an App issue. I have the number 2 on the app. I have been to every available link in the app and still nothing. Sent FNB numerous mails after the 5th person could not help I have asked them to escalate. My mails now being ignored - account about 20 years old, however, I imagine not being a blue chip company with millions in credit, small business is obviously insignificant. A simple app issue! I went as far as deleting the app, reloading, relinking to banking on laptop and the 2 appears again. I don’t want credit FNB I just want the problem resolved.