Thank you for your answer.  
	 
	1. I did contact the municipality but the instructions they have given me (all in japanese) to pay the fees are to send them either postal money order or cash , but postal money order doesn't exist anymore in Sweden and it is illegal to send cash by letter.  
	 
	They asked for copy of my passport, proof of address and to fill out a japanese form from their website. And payment of fees of course.  
	 
	I or my parents have no documents except a copy of a japanese form that was filled out by them to report my birth but this is not applicable (as told by the japanese and American embassy).  
	 
	I have no other documents.  
	 
	2. I am not sure if it is so or not.  
	 
	3. Yes it does state my correct place of birth.