Here are some tips for use of online payment systems, whether you are a PayPal member, Google Checkout user, or are using a credit card with/without a PP account. It also shows you how the books download works. Please pay particular attention to the first step, and make sure that you do not pay with both options. Choose either to pay with PayPal account or a credit card – or Google Checkout with or without an account.

If you pay with PayPal e-cheque (electronic cheque) through PayPal, it will show as Pending until the payment clears, and the download will NOT be instant, because payment for the digital goods not instant, even if it has left your bank account. Please be patient and wait for it to clear (up to 10 days) and turn off any spam filters that will block the automated email that notifies you of the download link.

If you're unfamiliar with buying online, this little 'tutorial' may serve as a good general guidance for online purchase.