Unless you have the Flex Drop-off option available, you need to return the bike to the pick-up location before your rental period expires.
If you're unable to return to the pick-up location, make sure you still lock the bike and tap END RENTAL in the app. Then please send us an email with the address/map where you left the bike. A screenshot with a pin on Google Maps would help us a lot.
Keep in mind that if you don't end the rental at the right location, you will be charged a relocation fee. Here is a list of the fees.