Check your payment details: Confirm the card number, expiration date, and CVV. Typos are a common cause of declines.

Confirm the card is valid: Use a card that has not expired. If it has, add a different card.

Check funds or credit limit: Make sure the account can cover the charge.

Try another payment method: Use a different card or wallet if the first one keeps failing.

Turn off VPN or pop-up blockers: They can block the 3D Secure verification step from loading.

Clear cookies and cache: Then try again, or complete checkout in a private/incognito window.

Try another browser: If it still fails, switch browsers and retry.