Bad experience with _esprit du temps_

Unfortunately I had a couple of bad experience with the Swiss based vintage dealer "_esprit_du_temps" (you find it mainly on Instagram): in two different occasions I was told a price for a watch but once I accepted to proceed with the deal the price was consequently raised (1st "We changed our mind, now it costs more" ,2nd "We received and higher offer so we prefer to get more").

In both case the watches weren't on auction and it was their price that they didn't stand for (I wasn't making an offer), in one case it even happened right away, like "For sale?how much?"" ,"it's 3K" , "Ok I take it" "Sorry we changed our mind".

No scam but still very very annoying.