The reward is not important - it's solving your issue which is the thing that matters. I don't know Wordfence - but I'm getting suspicious if a tool from Google (Pagespeed Insights) renders a 503 error. This could indicate that Google bot also might encounter troubles when checking your site. The best way to check is go over your logfiles & check for the responses you serve to the Googlebot.
Removing the country blocking now seems to enable pagespeed insights to work properly. Score is not great (50/100 - mobile) so more or less confirms the test by Webpagetest.org. Try to enable caching for static resources like images and enable gzip to compress data transfer. On top of that - compress your images (some of them are really heavy - check http://www.lesliekays.com/wp-content/uploads/2014/09/brake-hand-position.jpg . The other elements are probably more difficult to do - but these things could already get your score around 70%.
I would try to keep the Wordfence disabled for a week or two - to see if situation improves. Without the log files it's difficult to be sure - but my gut feeling is that this is the main reason why the site isn't ranking. Working on site performance can only help with this - the suggestions above shouldn't be that difficult to implement.
Some other issues - your internal links are not optimal - you have about 600+ links going to 404 (a lot of them = images) - 7 with wrong formatted url (without .com) - 600+ url's which are redirected (in your internal linking you are mixing both www & non-www versions) - so might want to clean up a bit on these ones as well. It shouldn't be a reason for not getting indexed but it's something you should have a look at - especially if the site has some issues before.
I ran a crawl - but it seemed to go on forever - so it's possible you have some kind of eternal loop as well. I stopped at 1781 URI's crawled.
I would recommend you to invest the 99 GBP in Screaming Frog - which would really help you in identifying / solving these issues.
Dirk