Proof for 普通徴収 (PR documents)

So I'm applying for PR currently.

And I'm struggling with document 9 on the checklist.

直近3年間において住民税を適正な時期に納めていることを証明する資料         
(通帳の写し、領収証書等)

I know this is referring to those residence tax bills that you get stamped at the combini.

Unfortunately, I've thrown those away not knowing I needed them for PR.

Is there anyway you can get receipts back or some kind of certificate from the town hall or the tax office for this?

by Tianshui