Start with stabilizing the internet connection or try another network or Wi-Fi connection.

If the issue persists, make sure to check with Google Support or Apple Support as they might be experiencing some issues at the moment.

Also, make sure to contact your bank company on any limitations applied to your card. Ask them to lift the limitations if there are any.

📌 NOTE: If the methods above do not seem to improve the situation, please contact us with a screenshot of the pop-up message that is appearing when conducting a purchase.