Our eBooks come in digital format only (PDF). We don’t sell physical books.
You can access your eBooks by going to this link and selecting the desired book: https://rntlab.com/courses
If this is not what you were expecting, you can ask for a refund here: https://randomnerdtutorials.com/returns-and-refunds/
If you’re having trouble accessing the course, you can send an email to our support: https://randomnerdtutorials.com/support/
I’m sorry for the misunderstanding.