Hi bebynho,
I have a suggestion, I don't know if anyone has suggested it before, or has already been thought of, but it is an idea.
In auctions, to avoid, or at least hinder the action of spys, my suggestion is that the auctions continue with the limit of 5 bids per drug at each auction, but that the prices are not personalized, the user will only click on a bid, and the bid will rise 0.1 from the current value, so it would take several accounts to raise the price of a single drug, so that the price becomes disproportionate. And the dispute will really be for the last seconds.
Hope this helps.
Thank you.
Lightyear