A. 1. Check your payment details: Ensure that your credit card information is entered correctly, including the card number, expiration date, and CVV. 2. Clear the app cache: Go to Settings > Apps > Spirit Airlines > Storage > Clear Cache to remove any corrupted data. 3. Try a different payment method: If one method fails, try using another (credit card, PayPal, etc.). 4. Ensure your app is updated: Go to the Google Play Store and check for updates to the Spirit Airlines app.

B. 5. Restart the app: Close the app completely and reopen it to reset the payment process.