NO service offered by First National Bank

I find the service at FNB credit card division absolutely shocking! (Well there is NO service at all) I have just put the phone down on them as the consultant wanted to put me through to the 8th consultant. They have an ID number on my profile which does not belong to me and FNB themselves don't know how to correct this. Absolute shocking and now I want to close my account with them and t\NO one knows what to do!!!