URL DE PAGO: http://dev-payment-backend-core.azurewebsites.net/?x_account_id=62224230&x_amount=15000&x_currency=CLP&x_reference=TEST1788320680&x_result=failed&x_timestamp=2026-09-01T23:44:40Z&x_message=Error%20validacion&x_signature=eca571d8635ef004bceef502561243bf820b64a07ee3802552001786a3b2b4db

RESULTADO: FALLIDO - Error validacion