shippping

I ordered something that was around 3.8 lbs but when I tracked the shipment on ups.com it says the package weighs .1 lbs. What's wrong? Is this a common problem? (I know i posted this earlier but I don't know where to find it after i accidentally x it out.)

Hello, I'm trying to track down the exact shipping date and month of this package. The year is listed but I need the month and date. Anyone who helps me track down the date based off of the other information on the picture of the package is eligible for the reward. Thank you!