Yes you can.
Quote:
"A gift card may be used as part or full payment on merchandise online or in any H.Samuel store. For online purchases you will be asked on the Payment Details page in checkout if you have any gift cards, simply click the button within the gift cards section to enter your card details. The payments will be taken from the gift cards in the order that you enter them on the gift cards payment page. It is not possible to deduct chosen amounts from separate cards to make up the total purchase price. You can use up to 5 gift cards and/or insurance replacement cards combined per order."
Source:
http://www.hsamuel.co...rservice/giftcards.do
Chris