Select the items you want to purchase and click "Add to Bag".
When you're done shopping, click the shopping bag icon at the top right corner of the page to proceed to checkout.
Sign in to your account if you're a "Returning customer" or continue shopping as a "Guest or new customer" by entering your email address.
You will be brought to the "Payments & Promotions" page where you will need to enter your payment details.
Just below your billing address you will find the field for "Promotions". Type in or paste your voucher code on the box labelled "Discounts & Vouchers" and click "Apply". Your order total will be adjusted accordingly.