A. 1. Verify payment method: Ensure that your payment method is valid and has sufficient funds. Check your payment settings in the app under 'Payment Methods.' 2. Use a different payment method: If issues persist, try using an alternative payment method (like a different credit card or digital wallet) to see if that resolves the problem.

B. 3. Check for app updates: Sometimes, payment issues can be resolved by updating the app. Go to the Google Play Store and check for updates.