I tried to buy through Catawiki a hi-fi tuner. I placed a price of 65 euros. For three days noone offered a higher price, but the last afternoon my offer was overpriced by others, then I waited to the last minute to see the hight of the auction and being the price at 77 euros, 2 seconds before the auction closes I offered a price of 82 euros. Pay attention to this detail.2 seconds before the auction ends. Then the manager of the auction of Catawiki instead of closing the auction to my banefit, half a second before the end, he changed the time and gave another 2 minutes time for the auction. So two other byers (probably of the catawiki stuff) increased the amount of the auction to 98 euros. I did not overpriced, for I felt that I had to deal with an untrusty unhonest company.