Be careful, they are scammers. When making a payment, even if the email is entered correctly, they cut off the first letter of the email. I intentionally made a second purchase and took a screenshot of the entered address; after the payment, the first letter of the email is missing.
After contacting customer support, they suggested I pay for the product again using the link they provided, and after going through that link, there is NO OPTION to pay with WebMoney anymore!