"1) How is it possibile that a top eleven player, having a full squad (no room for any other player) can compete with me in an auction? Whenever I reach maximun number of players in my team and I try to compete in an auction I get a warning saying "your team is full you can not buy any player if not selling one first"."

A: This was long time ago, now you can buy them.

"2) Similarly. How can someone compete in an auction if he has a negative money balance? you can claim he can borrow money from the bank, fine for me, but you would do that before bidding and not during...So i get really pissed off when someone with a -100M balance wins against me in an auction...since whenever i have a negative balance i CAN´T partecipate in auctions!!!"

A: Like Okta said but also for exemple he could have 10M and bid for 100 players as long at that time he's bank balance was on plus