Write to support@alexarix.com — we reply within one business day.
Carriers usually publish a new number 1–2 days after the sender ships. Parcel Radar keeps checking automatically.
Settings → Apple Account → Subscriptions → Parcel Radar → Cancel Subscription.
Open the app → Settings → Restore purchases.
In the app: Settings → Import → Gmail → Disconnect. Or remove access at myaccount.google.com/permissions.