Sorry, but ccTLD domain hacks and financial services don't mix well. Financial services should be stable and secure, their front page even embeds a Vimeo video over plain http.
I don't think there is a way to fix the https Vimeo issue. It's been a problem on a couple of the sites I've worked on for years and Vimeo acknowledges the problem but refuses to fix it.
Regarding domain hacks: times are changing and it's becoming more mainstream, evidently even for financial services; perhaps only the cooler ones though.
