Horrific service

Horrific service, I have complained regarding my business account, I got an email that someone will call me within 24-48 hours and to date no one has contacted me. I have a business account and FNB are not able to assist with an increase in my revolving credit or meet up to their communication of what was said that I would get a credit card within 6 months of banking with them. It is now over 9 months and I just get told the account scoring is not approving or declining. No one can explain this? So basically FNB is not able to assist businesses with funding for expansion yet advertise gloriously of how efficient the service is and how they can easily assist. The service is appalling. Businesses should never open an account with FNB. No one even bothers to call you after lodging a complain.