Amazon S-L-O-W shipping

[eigoya]

Not on Amazon, but I ordered a package 12/10 which had either 2 day (extra) or two week shipping through USPS via FedEx(who knew?). I didnt need it too quick, so opted for latter. After four days, it shipped, and I tracked it from the east coast in and out of Chino CA twice (in between Albuquerque, Oklahoma and another CA unknown city). Now it has been handed off from FedEx to USPS and has languished nearly two weeks in pre-pickup. Estimated date lengthened, and now is at 1/09/2020. I can't understand the trip to took around the country or where or why it sits. Wouldn't it be better to send it on? What actually happens to packages?