I've downloaded the app.. it's asking for an invite code... where is that? I can't find enough information on what the app does... and more importantly... how to do it... Also.. I would like to know what extra costs there might be for a (already) Premium account holder. Just a one star at this point... but happy to up that according to the useful help I get back from this ( can't find a helpdesk either). Also I would like to link this to our business facebook page.. not my personal one... how do I do that?