I just signed up for this challenge and I was under the impression that I just needed 9 nites within 90 days to complete the challenge. I thought I receive an email with this information but in reading another post it looks like you need 9 stays not nites to complete the challenge. Is this correct? I am currently gold and if this is the case I may have signed up for the gold challenge instead so at least I would stay gold until the end of 2019. 9 nites is possible but 9 different stays won't work since I am a leisure traveler and not business.