I placed a duplicate order

Because both orders write to the same public counter. The system records the start count when an order begins; if a second order is already pushing the same link, the numbers overlap and each order counts the other's delivery as its own.

The result: orders marked completed with fewer visible results than expected, and no way to verify which service delivered what — which also invalidates refill claims.

Wait until the first order completes, or use drip-feed when you want staged delivery on one link.

Request Cancel on the duplicate while it is still Pending. If both orders already started, let them finish — do not cancel mid-delivery, it usually ends in two Partials.