Why are my parents being asked to pay more for the item than the amount it is?

In the instance where the item is less than the minimum payment amount you have set, your parents will receive a message asking them to pay the minimum payment amount.

To change your minimum payments, simply go to Payments > Settings to view your minimum payment amount. By default, this is set to £5.00 but if you have an item which is less than this, we recommend you amend this at least while the product is available to buy. The card and PayPal options can be reduced, regrettably, the bar-code function's minimum is £5.00.