From our experience, usually the package gets delivered 2-3 days.
please give some time up to 21 days.
All our Planner Stickers are shipped with tracking number.
Once they're shipped, it is our of our control and USPS takes care of them.
If you never received a package, but the tracking says it is "delivered", please contact USPS as soon as possible and file a claim. They should be able to help you out with this matter!
Here is more info regarding how to file a claim.
https://about.usps.com/publications/pub370/pub370_v10_revision_012016_tech_013.htm