Hi, l placed an order for 3 blinds earlier today and believe l ordered the wrong design. I ordered a double skin blind, when to match my existing blinds l should have ordered a single skin blind. My order UOMJBFZKM was for Hampton and I should have ordered Infusion asc, l would like to change the design to Hampton please. Could you please change the order for me and advise any difference in cost, minus my introductory £10 Thanks