You said you “just want to make sure the package has been shipped.” Informed delivery does this for you. How they internally track what packs have been shipped or not shouldn’t be your concern.I'm not worried about tracking the package itself, I'm more so trying to make sure that they're not using the emailing of the tracking number as their way of tracking the sending of the package.
If you want to know yours has been shipped as soon as they label it, get informed delivery and it will tell you immediately