Please understand that Didactum® exclusively commercial customers, companies and public institutions and authorities supplies. Corporate customers and public institutions (public authorities, municipalities, universities, etc.) are Didactum ® on behalf of supplies (credit test). Before we activate your account, please send us the Número IVA and a certificate of registration of your company. This is number will be checked by us before opening. Without your Número IVA we cannot open your account. All prizes are presented in euros and do not include value added tax (VAT) and postage.