Sorry to hear that. Your phone is probably not compatible with our app. If your device runs on iOS, you won't even see the app in the App Store.
The list of devices our app works on is here.
Do you have a friend riding with you that has a compatible device? You can log in and unlock the bikes with their phone!
Otherwise, we'll have to cancel your rental and refund you. Send us an email at email@example.com with the subject "cancellation request" and give us the sad news.