Twins rack up £1,000 iPad bill buying virtual pets The father said he was shocked at how easily his children were able to rack up such a sizeable bill. "They were just prompted to enter the password, and that's what they kept doing," he added. These games are aimed at children and the designers know exactly what's going to happen. There should be measures in place to prevent this, such as asking for credit card details. He added the iPad password has now been changed, and Apple has since refunded the amount as a goodwill gesture. In April this year the Office of Fair Trading (OFT) announced the launch of an investigation into the ways in which online and app-based games encourage children to make purchases. Manufacturers could face fines for providing misleading information - and be forced to repackage downloads - as part of a new drive designed to stop children being ripped off. Last week it proposed a new set of industry-wide guidelines for developers amid a spate of children running up large charges from in-app purchases. In March five year-old Danny Kitchen innocently ordered £1,710.43 worth of costly add-ons to free iPad game Fruit Ninja, also a favourite of the Prime Minister. Danny said: "It was a good game, but I will never do anything like this again. I'm banned from the iPad now, but I am still going to play games when I can, but I will be careful now.