You can now sign up for the Century 21 Loyalty Program when you register for C21Stores.com. We will sign you up and email you the Loyalty Number and information. What at the benefits of Loyalty? When you join you will automatically receive 100 bonus points and become a Silver Member. Earn 2% back in Loyalty Dollars. Hit 1,000 points are you are a Gold Member, and you are now eligible for the VIP Checkout Line in Stores. Hit 5,000 points and you are a Platinum Member, and now eligible to earn 3% back on Loyalty Dollars.