Okay, this is obviously for a 90 day single entry Non-Immigrant Type O visa <- note there is no A after it. It's not an O-A because they're not asking for a police background check or a medical certificate.
The consulate in London isn't issuing regular Non-O's to people who don't show PENSION income statements even if they have the money in the bank. I don't know why, they just are.
I'd say, either get the year-long, multi-entry Non-Immigrant Type O-A (Long Stay) visa (which gives you unlimited entries for a year with each entry getting you stamped in for a whole year) and which requires a police back ground check and a medical certificate
OR
get a single entry tourist visa, come here, apply for the 90 day Non-O visa inside the country and then apply for the year extension after that.
Here's the info on the Non-O-A from London. Of the two choices I mentioned its by FAR the easier and most long lasting option. PLUS you don't need to bank any money here in thailand to get it. You use your account in the UK as proof of funds.
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