Over draft and credit card

Nivi pty ltd its been banking with fnb for a year and few months with them and we have made more than R1000 000 00 turnover as their requirement is R500 000 turnover but the don't want to grant us with overdraft, loan or credit card. i feel like changing our bank to ned bank their the people who assist us with credit card to build other business now because we love first national bank we cant move to any bank. The will really loose clients. now Nedbank is calling us for loan but we dont want to do loan with the bank that we dont bank with, but our happy for Nedbank granting a credit card for our company credit card of R200 000 within period of 6 months, but fnb the cant help us with our problem. But the will advertise How can we help you win. we also wanted a property the decline my business partner as she banking with them, only ABSA granted her as we know ABSA is very strictly bank. The only financed us with business vehicle loan and we paying very well.