Mag. Since you are new at the ceo thing I hope some will understand and forgive this just once. I hope. First. Never bid on a corp in a presidents(player) country. Bad idea. It's a players country and has state corps that the player owns or private corps that someone else owns. This will be perceived as "hostile".
Bid on C3 state run corps. Check to make sure the corp isn't a private corp in that c3. After you win this corp then "relocate" it to a player run country.
Never bid on a player country's corps.
I know you are new to this ceo part, so please pay heed to what we are trying to teach you, which is the right way. IF you want to be a hostile ceo and have everyone bid on your corps then good luck. You'll need it. HEhehe.
Seriously. Playing ceo takes a bit of time to check things out before you bid. Even while bidding if you see someone else has bid on that c3 corp, I retract and leave it alone. too many other c3 corps out there to bid on. A whole world as a matter of fact.
hope this helps you a little.
If a bid is to old then you can not retract it. ONly if it's fresh can you retract.