User Activity

can we petition to increase this to  90 days perhaps. ?  
does anyone know what happens to packages returned from CANADA to the new ebay international hub in IL it used to be kentucky now IL do these packages get lost? ? is there a phone number to call to find out their whereabouts?
for canadian sellersdo you sell in US dollars or in Canadian dollars? ? or if you list on the ebay canada is there limited exposure?