never heard of that. Wasn't required when i married a Thai lady three years or so ago. I vaguely remember a question perhas about my income, but no proof required. The UK embassy when giving you the affirmed affidavit you provided would have told you, surely?
thanks guys--i have the kor ror 11 from the Ampur. I wanted to do that extension route rather than the marriage extension, as i thought it could be done in one fell swoop without the visit and photos etc