Termination of tracking a parcel is possible in the following cases:
A track number has already been assigned, but the seller has not yet returned your order to the postal / courier service.
Tracking is provided only partially, most likely to the border of the country of departure.
Loss of the parcel by customs or at one of the sorting points along the route.
When you stop tracking, the steps are the same here: write to the seller weekly before the end date of the order protection and demand an explanation. And when the deadline comes to an end, seek the return of funds.