Hmmm. Bill, it sounds like perhaps you "updated" your information to a scam request pretending to be either Ebay or Paypal. If so I am afraid you are stuck. Hope it wasn't too much but if it cleaned you out it could have been several hits so not to draw attention. These things are often set up against a credit card. How did they get into your bank account? If on the other hand you simply have an ebay and pay pal account and somehow someone ripped you off, ebay should make good as I believe some years ago ebay bought paypal. If not, be sure and get an official report as I believe your loss may be deductible on next years taxes if you have paperwork officiating your loss.
Good luck,...Bob