Why do I have to write my pay pal number when I want to download a free book?

[AC Question]

why doe I have to write my pay pal number when i want to download a free book

free book at play store not free?

 

[B. Diddy]

Re: why doe I have to write my pay pal number when i want to download a free book

Welcome to Android Central! See this support page: https://support.google.com/googleplay/answer/2851613?hl=en

From that page:

"Downloading free music, TV shows, and certain free books and magazines is still considered a transaction, even when the price of the item is $0.00. If you don't have a credit card associated with your Google Wallet account or if you haven't set up a Google Wallet account, you'll be prompted to add a new payment method upon downloading some types of content on Google Play."