Open the Photos app › Albums › Recently Deleted. Everything Zenroll removes stays there for up to 30 days and can be recovered with one tap.
Open iOS Settings › Apps › Zenroll › Photos and choose Full Access. Limited access only lets Zenroll see the photos you picked, so similar and duplicate detection cannot work.
iOS reclaims the space when Recently Deleted is emptied: Photos › Albums › Recently Deleted › Select › Delete All. Zenroll's Done screen has a button that takes you there.
Settings › Similarity sensitivity › Strict makes grouping more conservative. You can also mark any photo as Protected so it is never suggested again.
Manage or cancel in Settings › Apple Account › Subscriptions. Refunds are handled by Apple at reportaproblem.apple.com. Tap Restore on the upgrade screen if your purchase is not recognised on a new phone.
Email accelease.dev@gmail.com. Attaching the file from Settings › Export diagnostics helps us answer faster; it contains scan statistics only, never photos.