a word of caution here the extension happens in 2 stages the first being the application followed by an under-consideration time. however, i advice people to keep the 400 K in the account until your extension is stamped in.
the most confusing part on is one needs to enter country of residence .. for people having residency in Thailand under whatever form Thailand can't be selected amongst the list of countries .. I think they got things mixed up with country of origin
i think a lot depends on the IM office / officer even in CW i am suggested to keep it up to date and bankbook updated the day we go to get the new extension