Docket
Noun
じゅりょうしょ
先週購入したTofugu製品の受領書を送って頂けませんか？
Could you send me the receipt for the Tofugu products I bought from you last week?
Please accept this territory. Oh, you want some writing to make the deal official? Okay, here's a receipt.
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.