Obtained my last retirement extension, based on permanent 800k bank deposit in my name only, at CW in December. I presented, with copies, my SCB bank book, updated the previous day, my bank confirmation letter, also dated the previous day (ie not the day of application), and my passport, plus the additional forms regarding penalties etc. now required by Immigration. As with all my previous applications no other details/forms were requested. I was in at 0830, given appointment no.16, and out by 0930, with no hassle.