Jigoshop seems more and more a 'amateuristic' plugin that is far from market ready. With the latest update it is impossible to set shipping cost with decimals (al least not in european settings) I have tried 5.5 (which turns into 55) and 5,5 which is not accepted by the page and saving this setting is impossible.
I just updated to the last version but it's worse than the version before. In which by the way the shipping cost where displayed with and without vat at random notice.
When are the guys of Jigo deliver what the promise. May I add that I bought to jigo extensions (viral coupon and packing slip/invoice) both of which did not work in the prelast version of jigoshop... It's all a rip off!