Oh, this is very interesting. I guess the sections most relevant to IAP's in the Developer Agreement are: Attachment 2 "Additional Terms for Use of the In-App Purchase API" as well as Schedule 2. I couldn't find a paragraph dealing with a non-consumable IAP that locks up the app ... Have you found a particular place in the Agreement during your research?

Sorry, bad copy-pasting on the link to the video. Here's the actual link

Brilliant, thanks a lot! Also thanks for the reference to the [WWDC22 Proactive Restore](Implement proactive in-app purchase restore - WWDC22 ...Apple Developer12.06.2022) video.

Thanks, I wasn't aware of that option. The process of getting a refund for a purchase seems a bit complicated, though. For reference, here's a link for how to request a refund