Yes, sharing an email id is a mandatory pre-requisite to enter the Earth Club Loyalty Program. In case you are already registered with us, the same email id shall be allocated to your The Earth Club Membership account. You can use this email id to login into your Earth Club Membership account and check the balance of your reward points. If you would like to receive instant updates on your reward points, on redemption and other relevant information about the Earth Club Loyalty Program and your Earth Club Membership via SMS, sharing your mobile number is recommended. Sharing other personal information like your mailing address, date of birth, and gender is not mandatory but recommended, so we can create a more personalized shopping experience for you.