Twice I tried to place an order and each time once I got to entering my payment details a message appears saying that there's a security problem and the order has been blocked. It advises to contact the site owner but that's impossible as Cotton Traders do not publish an email address. The only way of contacting them is by phone and paying 7p per minute + access charge just for the privilege of telling them that their system is hopeless. No thanks! won't ever bother trying to buy from them again.