Dehesa de Los Llanos, a Manchego DO Gran Reserva cheese from Albacete, has won the 2012 World Cheese Awards in Birmingham and is thus the best cheese in the world. Sadly, the quality of their excellent cheese is not reflected in their English website. It is pedestrian, though not exactly bad, until the final line.
I would translate
Si desea que se le envíe en una caja para regalo, indíquenoslo al final del proceso de compra en el cuadro de "Comentarios sobre el pedido".
If you would like to have it sent in a gift box, let us know in the box "Comments on your order" when you finalise your purchase.
If you want to be sent in a gift box, let us know at the end of the buying process in the box "Comments on the order."