ZANDO !!!!!

I placed an order with ZANDO for a pair of shoes on the 4th December. I did not receive the normal confirmation of the order so I re-ordered the pair of shoes on the 6th December. Unfortunately I have now been billed for TWO pairs of the exact same shoes. It was entirely my fault for not checking the order, BUT I have now sent 4 e-mails to ZANDO telling them about my predicament and NONE of my messages have been read and my original order of ONE PAIR OF SHOES has not been delivered to me. Is there anybody out there who can help me with this situation please??