Hey Ben,
I am really sorry for the delay of this reply,
I've checked in your frontend Easyblog page (
http://www.recontech.co.uk/index.php?option=com_easyblog ), it seems like you are still using Easyblog 3.9.19775 version and we are hard to tell you what is the issue causing your Twitter autopost will not work.
It would be best if you can provide us with your Joomla backend, FTP and Twitter access so we can check on this and solve this immediately.
By the way, in the future you can just include your site's access once at
http://stackideas.com/dashboard/site rather than needing to keep adding them in your replies