We apologize for the confusion and inconvenience caused to you. Paypal has a unique payment system called the "pre-authorization". When a customer places an order, paypal goes through a review of the payment to verify whether or not they can approve it. In this process, they charge the customer for the same amount, but actually this is just a temporary charge which will be pending during the review process. The second charge will be refunded as soon as the first payment has been approved. We are sorry to tell you that this is not a feature that we can control. We would truly appreciate it if you could wait a few hours or days for the payment to be approved, as you will get refunded for the pre-authorized payment soon. Please let us know if you do not get refunded for the second charge within a month. We appreaciate your understanding!