If you used a credit card or debit card the charge you see is actually a pre-authorization hold. This is a temporary electronic authorization. The card will not be charged unless the order ships. If you did not complete the order, the authorization will drop off your account according to your credit card or bank policy. This generally happens within 2 – 10 business days. For more information, contact your credit card company or bank to find out when the authorization will be released.
If you used PayPal, the charge you see is actually a pre-transaction notification. This notification will drop off your PayPal account within 30 days. Contact PayPal directly to find out exactly when the pending notification will drop off.