Worked on enhancing developer-facing documentation for the mercadopago/devsite-docs repository, focusing on the cc_rejected_high_risk payment rejection warning. The updates clarified that this warning can occur when consecutive payments share the same payer and items, and added guidance about potential duplicate payment attempts. The documentation improvements were delivered in English, Spanish, and Portuguese, ensuring multilingual clarity for a broader developer audience. All changes were implemented using Markdown, emphasizing clear and accessible technical writing. The work addressed edge cases in payment processing, providing developers with more precise information to handle high-risk payment scenarios and reduce confusion around duplicate transaction warnings.