"Hold on to your receipt until you receive the package."
"Hold on to your receipt until you receive the package." "hold on to ~" 「〜を持ってて」"keep ~" も使えます。 "your receipt" 「レシート」・「あなたのレシート」 "until ~" 「〜まで」 "you receive the package" 「商品受け取る」"package" の代わりに "items" や "merchandise" も言えます。