A. 1. Check your payment details: Ensure that your payment information (credit card, bank account) is entered correctly. 2. Use a different payment method: If one payment method fails, try using another method (e.g., different credit card or PayPal). 3. Ensure sufficient funds: Make sure that your payment method has sufficient funds available.

B. 4. Update the app: Ensure you are using the latest version of the app, as updates may fix payment processing issues.