Hello, To further investigate this, please file a bug report using Feedback Assistant. It is crucial that you securely attach screenshots of the purchase dialog showing the incorrect email, as well as screenshots from your device's Settings > App Store screen showing both the Media & Purchases and the Sandbox Account sections. Additionally, you can follow the instructions on the Bug Reporting - Profiles and Logs page to capture and attach a sysdiagnose log immediately after reproducing the issue. Once submitted, please share the Feedback ID (e.g., FB12345678) here to track the report.
Topic:
App Store Distribution & Marketing
SubTopic:
TestFlight
Tags: