Payments can be made preferably by bank transfer or by credit card via the secure PayPal ®, but also by check.
To ensure the security of financial transactions by credit card, I have chosen to pay via Paypal's secure server. To increase security at the time of payment by credit card, you will be taken at the PayPal site with secure, encrypted "https" (more about PayPal at this link), online banking more secure on the internet. In this way, only Paypal will be in possession of your card details will not be visible to others in any way.
If you already have a PayPal account, you can pay directly through this circuit, a worldwide leader in on-line transactions, otherwise you can pay with your credit card, in peace.