Due to a new policy implemented by Google, we have deactivated payments from Android, so you will not be able to continue renting from the App.
To enjoy the "Store" content, buy or rent from the Web https://rakuten.tv download the Play Store App, then link with your credentials and retrieve the content from "My Library".
Rent content from the Web:
Open or download the App, log in with your credentials and retrieve the content from "My Library" where you can play it.
How can I watch the movies and TV series included in my subscription?
You can find all the movies and TV shows included, in the "subscription" menu from "My Library". You can navigate to the details page of movies and TV shows and start playback.