Anytime you receive an offer for complimentary Gold VIP membership, you will maintain that membership for the entire year in which it is extended to you. To maintain the Gold VIP level the following year, you must qualify by achieving 16 qualifying stays or 36 qualifying nights. If you are interested in achieving the Diamond VIP level, your account must register 28 qualifying stays or 60 qualifying nights each calendar year. I hope this answers your question with regards to how the Gold and Diamond levels work.
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