Hello, Jordan,
I am sorry to see the P.O. struck again... I had that problem a couple of times last year from the same seller... It was a lot of money and there wasn't anything that could be done about the treatment of the box itself.
Have your mother file a formal complaint with your local post office about the fact that they did not call when the box was clearly marked... Trust me, if you get the right person sympathetic for you, you would be amazed at how helpful they can be. The squeaky hinge gets oiled first kind of thing.
(My carrier is about to two steps from get the smack down treatment from me as I am hormonal and lacking patience at this time.)
My post office knows I get in eggs... they think I am nuts but they know that the boxes are usually marked clearly with call me instructions (they instructed me to have that written on the packages) as my carrier has found herself to be too lazy to attempt deliveries for the most part. On Monday, I was expecting three boxes of eggs. I received a call for one and a package slip for two other packages which they wouldn't let me pick up. They won't release packages the day the slip is written because they don't sort them until that night, after they close... guess what the other two packages were? Worst thing was they were very clearly marked with the same exact information on calling for pickup...
Let's just say that a while back I was getting irritated about have to pick up boxes from grandma that would have fit in my mailbox (she actually measured the boxes to make sure) and after voicing my irritation about having to wait an additional three days to pick up packages while dragging four children with me, I was given the phone number to the carrier manager... I actually kept it and used it Tuesday morning. I am hoping that my package problems are resolved as they don't want to get calls from pregnant women at 7 am. The manager has put into place a policy that I get called on all packages to see if I will be there for delivery and if not, they will make sure to leave a message, a package slip and pull my packages so I don't have to wait.
FYI, I was never nasty, just clear and honest and ended every conversation with "Thank you so much for your help, I appreciate you making the effort."