package not delivered

[guidosarducci]

I bought a laser printer drum unit from an ostensibly positive rated reliable seller that never arrived. USPS tracking number shows package delivered to house when I was home and I was awaiting it's arrival. I checked with my neighbors but no where to be found. I contacted seller through eBay and was told only that tracking shows package delivered and abdicated all further responsibility. Ebay advised me to contact USPS, which I did, and representative tells me that only the city and zip code of where package was delivered is normal. No house number or street. But he was able to research and found that the address it was mailed to was different than my address, the one recorded on eBay account. USPS rep is only allowed to tell me that it was sent to an address in my zip-code and city. This can only happen if seller puts the wrong address on the package. I submitted the USPS rep email proving this but seller and eBay both refusing to accept fact and keep repeating that tracking shows delivered to right address!  Which is demonstrably false. Any suggestions? Anyone?