No service or care from FNB and excessive fees

I have been trying to get FNB to change an account and block a debit order for 3 months now, and still they ignore me. I have sent many requests in the contact area provided on the online banking platform. They simply seem to ignore me.<br> Now they have just bounce a whole lot of debit orders due to \insufficient funds""; not mine;as i had deposited enough money into my account before they bounced the debit orders. They refuse to acknowledge receipt of my contact requests - they simply do not reply!<br> In addition their account fees have become excessive and are way above the supposedly \""fixed\"" affordable monthly fee that it was meant to be!<br> This service is absolutely disgusting!! I am now seriously thinking of changing to another bank because of their unacceptable service after over 10 years of being loyally banking with them!"""