Receipt
noun
I obtain some territory, so I want a written record of it. How will I get a written record of my obtained territory? How about with a receipt? Emailing one will do just fine.
りょうしゅうしょ
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
これを返品したいのですが。これが領収書です。
I’d like to return this. Here’s the receipt.