Hi all - just have come across this thread, and am intrigued. Do you have to know a lot about computers/software/spreadsheets etc to pass the tests? How much time a day do you spend on it?
I work 2 x 12 hour days a week (different days each week) so wouldn't be able to do anything on those days. Would that be a problem?
The Kindle Direct Publishing thing sounds fun - is the idea that your product/book sells?
sorry if that is a dumb question...
Also, I'm not really a whizz on the computer or especially brainy, but would like to make an extra £200/month if possible. I've done matched betting before, but fed up with the gambling angle on it. 
Thank you in advance to anyone who answers my general inquiries!