Its really easy to pay for your order. Payment is made through Paypal.
 

Once you go to checkout, just follow the instructions and enter your Paypal account email in the box when
instructed to do so. If you do not have a Paypal account, then just enter your normal email address.

A Paypal invoice for the amount will be sent shortly after checkout is completed.
If you do not have a Paypal account, you can pay the invoice using your credit or debit card.
Just follow the instructions.

Invoice Request will state

MERCONIC - 'order number'