Hi Newspeak...you say you paid by bank deposit? If so, you already have the sellers location via the BSB...his/her name, and the bank they use. All you need do is give this to police with the emails da-ewok mentioned. That's the ONLY safe thing about using b/deposit on ebay these days...the very fact that you have the sellers details.
If you contacted ebay the first thing they asked no doubt was.....did you use Paypal? If not, too bad, nobody home !!. So, in a bid to make everyone use Paypal, they ignore the fraud on their site, and it becomes functional in some perverted way. One thing is certain, this type of fraud has been out of control on Ebay for some time now......anyone remember the frauds that happened last year? not one consumer ripped off...thousands were defrauded. Still with all of eBay's so called innovative disruptions, they've done diddly squit to Id sellers and make Ebay a safe marketplace. They never learn !!!
Anyway......Numb posted a thread on this subject, and put in a link to look up BSB numbers. Once you have the suburb of the bank branch, get on line to the white pages and see if the individual who's name you have, is listed in the phone book for that area or any nearby suburb.
Now while you are doing all this mucking around...You should also consider lodging a complaint against Ebay with Fair Trading, and complain specifically about the absence of any customer service or assistance, as a result of being defrauded by a seller that Ebay allow on their site (Unverified and hence anonymous) Here we go again with 100 pt Aust Post ID....LOL
You should retain and make copies of all info you have and put it in a file. i.e. emails (original from ebay) Print down the actual email and the internet header...any emails direct from the seller, do the same...all emails asking ebay for help forlornly should be tendered both with the police complaint and complaint to Fair Trading...(in some states it is called Consumer Affairs) Ebay is a service provider, not a venue, according to a precedent case in Victoria defined years ago...(Evagora v Ebay - v-cat database I think). If you are located in Vic...even better, they have the best consumer protection laws in the country.
When you lodge your complaint against Ebay with fair trading, make sure you send a CC, to the Minister in charge of that Dept in the State you live in. Tell them that consumers are unprotected against fraud on Ebay, and ebay do nothing to assist the victim or police in any expedient manner to track them down.
Just my opinion !!