Any Apple gurus?

Apparently, at some point in the distant past, I created an iCloud account, probably while working tech support. I've never owned an Apple product. This morning I get an email saying my account had been accessed from an iMac 27. I immediately went through the Forgot password and Reset password process from my PC. Chatted with Apple support for about 30 minutes and they couldn't help. The big problem now is that I can't do anything other than sign in because I can't remember the EXACT answers to my security questions. Ideally, I'd like to just delete the account but can't get past the security questions hurdle. Any fresh attempts will have to wait a day or two since I failed enough times to trigger a lockout. Any suggestions on how to do this?

FYI, I was able to see the expiration date on the CC associated with the account was 2013 so that's not a major concern at the moment.