How to get a record copy of all purchases

You can do screenshots of the purchase history via your computer's iTunes : See your purchase history in the App Store or iTunes Store - Apple Support

And you shouldn't post your email address on a public forum

Using the iTunes app on a Mac or P\C you can sign into your account details and view your entire purchase history.

ASC - Late 2012 Mac mini, macOS 10.14.6; Watch, series 3 cellular, watchOS 5.3; iPad Air 2 & iPhone 8+, iOS 12.4; TV 4th Gen, tvOS 12.4;  HomePods, audioOS 12.4 and Airport Express w/ Airplay 2