Apple (for IOS users) and Google (for Android users) manage subscriptions. You must therefore modify your payment card directly on the App Store or Google Play platforms.
For IOS users
- Log out of the application.
- On your iPhone, click on "Settings"
- Go to "iTunes Store and App Store"
- Click on your username
- Click on "display Apple ID": a page opens
- Click on "Manage payments"
- Change the payment method
For Android users
- Log out of the application
- Open the Google Play Store application
- Make sure you are logged into the right Google Account
- Press Menu, then Subscriptions
- Press the Flipr subscription button
- Press Manage
- Follow the instructions