Yeah e-bay/paypal can be a disappointment.
I got duped on there last month- I was selling an item on there for the first time and an e-bayer with an excellent five year 'buying history', A+ rating etc. bought it. I got an e-mail from paypal saying the funds were deposited in my paypal account, so I mailed the item to the address provided...
Turns out some hacker had stolen her account and sent me a phony paypal e-mail. So I basically got robbed. I can't call the cops because the address is in africa.
Be careful using e-bay. or at least stay on your toes.