IAP Sandbox Testing - Apple asks for old Sandbox accounts

We can´t test IAP because on the device it always ask for one or two old sandbox accounts. So we have no change to enter details of new sandbox account to test payment and subscription working in clients device.


Steps:

- Logged out from appstore in settings

- Reset all iPhone 5 settings

- Deleted latest build and installed new build via Testflight

- App still asks for a password of a very old sandbox account.

- Click cancel, later it asks for another old sandbox account.


This started happening like this week? Last week we were able to test correct with same steps.

Is it possible that another app on that device, under the control of one of those old test accounts, failed to finish a transaction or purchased an autorenewable subscription that wants to renew?

IAP Sandbox Testing - Apple asks for old Sandbox accounts
 
 
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