In addition, you can also look here
. I am in the reverse situation as you... I am a Captain's Club Select member, which makes me eligible for Crown & Anchor Platinum status.
Do you presently have a Captain's Club number? We each had C&A numbers from a couple of earlier cruises on RCCL, and our C&A status was upgraded automatically. If you con't have a CC number, call the number in the link Dave provided.