Requesting payment for account which was settled

It's really concerning and disturbing that the service we are receiving from our call centers and banking industry has become so bad where staff members have attitudes , arrogant ,not polite ,don't want to listen and are also not willing to assist. It's easy for them get rid of you by saying \I don't know and can't help you go to your nearest branch they will be able to assist. I had an issue recently where I received SMS's