How can I take advantage of the 10% welcome voucher from the newsletter?

"Our Welcome Code promotion gives you 10% off on your first purchase at carolinaherrera.com. In order to receive your code you only have to subscribe to the newsletter using the registration form available on our website. An individual promotional code will be sent to you by e-mail in the next 24 hours from the newsletter subscription and it can only be used once. To apply the discount, please enter your promotional code during the check-out of your first purchase. Please bare in mind this particular code is valid for 1 month from the receipt e-mail date, on the Carolina Herrera website exclusively. The offer is not cumulative with other promo codes"