Hi,
Sure, we’ll process the refund if anything is not working as expected (it’s a “30-day no questions asked” refund policy at wpfactory.com). Alternatively, if you wish, I could try to fix any issues you may have. Regarding the free version, however – you actually can have two currencies there – i.e., one is the default shop currency (which is added automatically to the plugin’s currencies list), and another you can add. So you can have products in two currencies with the free version, for example – USD and EUR.
Hope that helps.
Best regards,
Tom