Only being able to restore/refund an item once ever seems pretty unreasonable. I recently bought the wrong item with sigmascape items because i thought the polish took 1.0 and it was 2.0 (yea i wasn't paying much attention and its my fault). However I wanted to see if i could get the books back or the item i ctually wanted but i got a decline response because I got an exchange back in November of 2015. There should be a more reasonable limit to this function, perhaps once per year, or once per expansion. I know Im dumb for not paying attention, it just sucks wasting 4 weeks of clears on the wrong item. The only consolation is I can use the polish on my main class for my last accessory so its not a complete loss, but still.... seems pretty ridiculous.