The sad story of my package

I bought something on eBay from a seller that only lives a few blocks away. She lives in Peoria, AZ and I live in Glendale, AZ. The package was sent out last Wednesday and I’m supposed to get it today after 7 days and an unnecessary trip to New Mexico. Note that the tracking number was inactive for the first three days even though the seller had already left it at the post office.