To share with friends, just click "Refer now" and choose how to share the code from TK Maxx's social sharing options. Once your friend has registered for the treasure using the referral link, you will receive a star key. You can recommend as many friends as you need. However, you will only receive the star key after your friend has registered the treasure using the referral link. Don't forget, to collect the winning five-key combination, you need up to two-star keys and three shopping keys. For more ways to obtain keys, go to the official website to learn more.