Well the dates of purchase of both the device and the protection are still managed. In your case, you were beyond the 45 days, but it seems Microsoft afforded you favor. But your plan and your device are certainly already mated.
When I go to the Surface Online Service Center Device Manager page, it shows that my Surface Book has an extended service plan.Can someone who has Complete on their SB please answer and let me know how it shows up on their device or their account? I would greatly appreciate that information.