Just So People Know
Ebay has made many changes to their systems, including the ability to retract bids.
One can no longer simply retract a bid willy-nilly, so placing a bid to suff out the reserve, then canceling that bid is no longer on, in most cases.
Also, yes as Ganksy says, sellers hever have nor never will see a buyer's highest bid, they only know what the highest winning bid was, and now because of changes to eBay's system, bidding activity in terms of who bid what.
L.