Custom electronic payment for individual projects and services according to article 65 L.4446/2016. To proceed, the user, must have a valid credit/debit cart or paypal account. The amount of the payment is agreed according to specific project. The user is responsible inserting the correct amount of payment. This payment can include Vat or other taxes according to legislation. After the payment, the service provider is responsible to deliver the appropriate payment invoice, or other fiscal documentation according to national legislation.