BAD CUSTOMER SERVICE

I have been a FNB client for more than 20 years.. I am now applying for a bond(my 2nd bond) with FNB and they refuse to give me the full amount due to a high credit card limit . I have never asked for the limit on the credit card. According to customer service its an affordability issue and that's it. I have explained to them to reduce the credit card limit as i don need it and up the bond to my required amount which is half the credit card limit. ABSA and SAHL whom i am not banking with have given me 100% yet FNB whom i am dealing with for more than 20 years wont assist me.... clearly the ' how can we help' line is not one fit for FNB at this point<br>