Pension Refund: Do I need to include the pension slips as well?

Hi everyone!

I'm applying to get my pension refund. They say to include the blue pension handbook, but they don't say anything about the "Japan Pension Service" slips (or "newsletters" as translated by Google-sensei) we receive once a year by mail. Do I also need to mail them with the form, necessary copies, and the blue handbook?

The only thing in my pension book is a sticker with my name, pension number, date of birth, gender, and the date when it was delivered. I never wrote anything in it, so do the pension slips have to be included with this application?

TIA! ^^

by yangsanxiu