I live in the US but read lots of books that take place in the UK and Australia, so I'm used to seeing spelling look more American in US editions of books.
In The Appeal by Janice Hallett, though, the US edition has them sponsoring the money in dollars rather than pounds. It's a US drug company so of course it would have to be converted to $ later, but wouldn't they be raising £ first? For example the money from Sainsbury's would have to be raised first in pounds then converted to dollars later, and I think it's odd that all the emails mention people donating dollars.
Is this also the case with the UK edition?