I really appreciate everyone's input here, indeed I learned a lesson dealing with these cheats. Never got duped before that is why I was quite surprised  Oh well time to move on.

I did but unfortunately Ebay doesn't deal with sellers selling digital item. The funny thing is that the buyer even sent me messages from his ebay account about him receiving the bitcoin but then I don't know what happened. Although Ebay is taking a look at this matter but I know eventually I will lose but I just wanted to let others know that this is what is going on with that wallet id.

Hello everyone, I am new to this forum and I would really appreciate some advice from you guys. I recently sold 1BTC on Ebay but the buyer scammed me by saying that it was bought without his consent right after I sent him the bitcoin. Have anyone of you faced this kind of problem before and what did you do to solve this mess? Is there any place where I can report a scammer's wallet id? I've waited forever to gather those bitcoins and now they are gone 

The scammer's wallet id: 16y9NCNH5w8XZtomYXoxqWKxVU8N67ymmQ

Your help would be highly appreciated.