Canada Post , like USPS /UPS/ FedEx, uses a spoke and hub distribution system.
Basically, many small parcels are put in one big box and sent to the next point.
If the box is full that may be Vancouver to Montreal, but if the box is only half full, it may stop in Calgary, pick up more shipments and then move on to Montreal.
Or Mississauga.
The point is,when the big box arrives in Montreal, it will be full.
(And a shipment for the guy in Val d'Or will be in the same box.)
Now two things.
That's partly metaphorical. The box may be the size of a small dumpster or the size of a railway car.
And more importantly-- your parcel is NOT in Calgary. That's just where someone recorded it as being in that big box.
You got an estimated window for arrival from eBay.
Is your shipment delayed past the last date?
If so, what you need to know is not tracking, which is a Seller Protection and of no real value to the buyer*, but how to open an Item Not Received Dispute.
If you can, and it is an emotional decision, on your next order, put the last estimated date for arrival on your calendar and don't look at tracking at all.
You are covered by eBay Buyer Protection, Paypal Buyer Protection and the chargeback policy of the credit card you back your PP account with.
*except emotional
