Best shipping and mailing service in East Wareham, Massachusetts (MA) 2024

I own a computer repair shop in Buzzards bay and we usually go to that branch but I decided to go to the Wareham Post Office as it was on my way home. They took my package and processed my package, never asking me if I wanted to add insurance (Which I did). When I told her that I wanted insurance she had this disgusted look on her face and said "I'd have to rewrite this whole order". I said okay....a week later I got a call from my customer saying that he never got his computer. I called WPO and they said they couldn't track the package that something must have happened to the shipping label. My customer just called back a day later and said the package showed up....EMPTY...No computer inside and that he called the post office and they told him that his package was NOT insured. I called WPO and they told me to make a claim. I'm beside myself. How does an entire computer go missing out of a box and then they deliver the empty box ONLY???? This isn't even MY computer it's my customer's computer!! ~Tim