Last month, my 2017 Leaf S got totalled. In examining the proposed payoff, I didn't see anything to reflect that I had paid the extra $1700 for the charging package (which I think most S owners did). I dropped by the service department of my local dealer, and they kindly printed me another copy of my window sticker based on the VIN. I sent that to the insurance company with an explanation, and my payout amount jumped by about $1200.
In the future I will always safe a photo of my window sticker.