Pathetic service from "relationship managers" and "service managers" and an *********** call centre

I phoned FNB 7 times today, to try to change my business credit card limit. I have been referred from Pillar to post by 7 different agents, who advised that the only person who is able to sort out my limit is the relationship manager. Mac Cotholl from the Rosebank branch is completely unreachable, and when calling the number to try reach FNB rosebank you are advised to dial "5" to speak to a relationship manager or service manager. The phone just rings and rings. This service is pathetic and not the first time. I don't want an apology - I want a credit on my business fees I've paid this month. Perhaps it's time to change banks - FNB's automated service offerings, relationship managers and personal bankers are not effective and poorly thought out and whoever thought out the concept has some explaining to do.