Hello @afcuaro, Congratulations on your first post in the Community! I understand your buyer is unable to make a payment as a guest, and I apologize for the inconvenience this has caused. The option to checkout as a guest may not always be an available option for buyers. You can learn more about the guest checkout process and possible reasons on our Help Center here: How do I accept cards with Checkout using the Guest Checkout option? I hope this information helps! - Meghan
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