This offer applies to online orders received by the 30th April 2014 and paid for by credit card or purchase order. The online voucher can be used as payment for products and shipping charges, it shall be redeemed in full and in one transaction, no refund will be issued for any residual balance. If the online order value is in excess of the credit voucher, the website will calculate the balance to pay by credit card or purchase order. Purchase orders are to be sent as per the website instructions.