If you choose to pay with Google Checkout please follow these guidelines,

1. Large orders received via Google Checkout may need to be verified before delivery by talking to the account holder on the phone. Due to the high volume of fraud we have encountered, we reserve the right to refund any payment for any reason.
2. We reserve the right to independently verify whether orders through Google Checkout are legitimate before they are accepted.

If you do not already have a Google Checkout account and would like to set one up, you can do so by going to checkout.google.com.