I've never tried to contact the LW support itself, so I don't know how good or bad it is! This forum's pretty good though, there'll usually be someone around to help

With your searches, try clicking on 'All' in the boxes (type, artist, album etc) to the left of the search page. If you've set your junk filter to 'not display junk' then some results may never show (if LW has recognised any search results as junk).