Thanks to all of you for your replies!
Originally Posted by hednic
Yes, Mumsy, "Sniping" is part of the fun of bidding on Ebay!
I always bid on the last four seconds and enter the price I am willing to pay (usually it's a I-will-get-this price).
Once it happened to me in this situation that Ebay popped up asking me to log in. Since then I am always logging out and in before bidding.
In my particular case I won both auctions offered by the same seller â€“ Chanel N°19 100 ml Vintage EdT, boxed, and 28 ml vintage Extrait, sealed, double-boxed â€“ but I was a bit irritated how high the Extrait went finally and checked the bidding record to have a look at the other enthusiast. After a quick research I found out that this member is only bidding on that specific seller's items (T-Shirts, pots etc) and having 18 withdrawn bids. Checking the sellers feedback confirmed that picture. During the past few month this member was bidding on every single item offered by the seller.
I am really torn. I decided myself how much I want to pay for this (a little bit more than reasonable and without that third members intervention it would have been a real bargain), but the fact of the manipulation tweaks somehow and I was thinking about canceling the transaction. Well, I quite likely won't.
However, I think I will report this kind of professional shilling to Ebay, hoping they will do something about it.
So long and happy hunting!