I may be new to this environment but I think how the bidding in this game sucks, for new people like me coins are hard to come by and we need coins to bid.
Recently I was in a bid to win a 5 star Doctor that I urgently needed but I lost in the first Knock Out round due to having no more coins.
In my opinion yes you shouldn't get the coin back during the bidding or else it would just go own for a while, but when you lose the bid I feel that you should get your coins back because you lost the bid.
Coins are not easy for the newer players like I said before, right now I'm only getting one coin per league race and i have only six races remaining on it.
So creators please hear me out and maybe change this.