Thanks all. I have extended from the exit date for further 30 days. Just to let you know ....On the phone they told me to go to office near Silom. I went there and they told me to go to Bldg B, ChangWatana. When I got in there ..they told me to go to IT Laksi. This was just a small office (only one staff doing extension) on 3rd floor of a half abandoned shopping mall. Totally unorganised. But okay in the end.