I have purchased a digital textbook and have not received my access code

I have purchased a digital textbook and have not received my access code

Please check your inbox and spam folder for the email containing the code.


Subject: [Difusión Tienda] Código de acceso/licencia Campus - includes the access code to your content on Campus Difusión and instructions on how to use it.


Or log in to My Account at www.difusion.com/tienda - Licencias and you will be able to view the license codes you have purchased.