If you experience issues with purchasing lessons:
Please press the 'Restore' button on the Lesson Index screen.
Make sure that you have internet connectivity.
If this doesn't work, please delete the app and download it again from the app store.
Apple keeps records of your purchase history, so they will not charge you twice.
Please email us if you still have problems: apple [at] goethe-verlag.com
Thank you for using our app!