@siracusa I’m sure you’ve already heard this, but just in case, that list of purchases you are looking for is available on Apple.com. Shows you every purchase and has the refund button once the purchase posts.

https://support.apple.com/en-us/HT204084

Request a refund for apps or content that you bought from Apple

Some purchases from the App Store, iTunes Store, Apple Books, or other Apple services might be eligible for a refund. You can use any device with a web browser to request a refund.

Apple Support
@siracusa so we have at least the early 2000s functionality.