You are not the only one to dislike the GSP.
There are two threads over 5000 posts long complaining about it.
Most of the complainants do not understand that the GSP has nothing to do with buyers.
It is a Seller Protection Program designed to encourage US (and later UK sellers) to accept international orders.
In the case you cite, I see an shipment that was mailed in California on Monday, June 5.
It arrive late at night in Cincinnati OH on June 6.
Left the USPS offices on June 8 and arrived at the GSP plant the same morning.
Over the weekend it was processed including being assessed for customs (again*)
On Monday (today) that was completed.
It is probably on a truck, packed in bond, and on its way to Canada as we type.
Note that while CBSA and Canada Post informally have decided not to bother assessing low value shipments (under $100 generally) that private couriers like the GSP (and UPS and FedEx) are required to assess and charge applicable duty and more importantly Sales Tax to the recipient on any shipment valued over $20CDN (~$16USD).
Most charge $25 or more for this 'customs brokerage" . The GSP charges around $5 on average.
Canada Post charges $9.95.
So.
You could have backed out of the deal when you saw how much the GSP was going to cost.
It was your choice to pay anyway.
In my 35 years or more in mail order, it has been my experience that delivery to and from the USA takes around 20 days. Sometimes less, sometimes more. Around 20 days.
Your item has been in transit for seven days, including the weekend. It will probably arrive by Friday or maybe Monday.
The GSP is a bad Buyer experience on items valued under $100 (or very bulky).
You can avoid GSP listings by Searching using List View instead of Gallery View.
GSP listings are hard to see on mobiles. To avoid GSP listings buy from a laptop or desktop.
And again if the price is too high, don't buy.
*This indicates that your seller may not have made clear what is in your shipment and where it was manufactured. This could cause problems including opening and repacking.
