Shop like this:

1. Click on "Add to cart" for the product you would like to buy.
2. Would you like to order more, click again or on another product.
3. Click on the button "Order". the button will be visible when the shopping cart isn't empty.
4. Fill in the requested information on the order form. Do not forget to double check that your e-mail address is correct. It is needed to confirm your order.