private void btnChangeStatus_Click(object sender, EventArgs e)
    {
        HttpWebRequest request = (HttpWebRequest) WebRequest.Create("https://s.whatsapp.net/client/iphone/u.php");
        request.KeepAlive = false;
        request.ProtocolVersion = HttpVersion.Version10;
        request.Method = "POST";
        request.UserAgent = "User-Agent:WhatsApp/2.6.7 iPhone_OS/5.0.1 Device/Unknown_(iPhone4,1)";
        byte[] bytes = Encoding.ASCII.GetBytes("cc=31&me=" + Uri.EscapeDataString(this.txtPhoneNumber.Text) + "&s=" + Uri.EscapeDataString(this.txtNewStatus.Text));
        request.ContentType = "application/x-www-form-urlencoded";
        request.ContentLength = bytes.Length;
        Stream requestStream = request.GetRequestStream();
        requestStream.Write(bytes, 0, bytes.Length);
        requestStream.Close();
        HttpWebResponse response = (HttpWebResponse) request.GetResponse();
        MessageBox.Show("Status has been changed to: " + this.txtNewStatus.Text);
    }