Venice Factory use the PayPal Payment System:

PayPal: Easily shop online without having to enter your credit card details on the website. Your account will be charged once the order is completed. To register for a PayPal account, visit the website

With PayPal you can also pay using your Credit Card (without to have a PayPal account).
Visa, MasterCard, American Express, Visa Electron, Maestro are enabled debit cards.