If you bought the book second-hand (Marktplaats/Ebay) and it didn't come with a code, email Boom Amsterdam directly. Explain that you have the physical book and need access to the "nieuwe" audio. Sometimes, they sell the digital license separately for a reduced fee (€10-€15), which is cheaper than a new book.
It is vital to ensure your audio matches your book. de opmaat audio free new
De Opmaat (literally "The Preparation" or "Getting Started") is published by Boom Tailor and is a staple in Dutch language schools. The "New" (Nieuwe) edition is updated to reflect current language standards and exam requirements. If you bought the book second-hand (Marktplaats/Ebay) and