I recall matching up from UA platinum to Hertz "President's circle" in the past, but did not follow and am not sure how it ended up. I did receive a plastic card from Hertz that says "Gold Plus Rewards President's Circle" but does it mean I am a member or simply a name of the program?

Going to the web site and logging in did not clear things much - my account information does not state unequivocally either way. How can I verify with certainty?