UOL auto response

fuckUOLChat.js

var timex = setInterval(sendFuckingMsg, 30000);

function sendFuckingMsg(){
    productName = "ESPN Ilimitado";
    uolPersonName = document.getElementById("Span1").textContent;
    textField = document.getElementById("message");
    button = document.getElementsByClassName("vinter-button vinter-quest-btnSend")[0];
    textField.value = "Oi" + uolPersonName + "Não estou interessado. Quero CANCELAR o " + productName + "!";
    button.click();
}