Champ select issues

I would love to see you guys make it so an ally can't ban a champion you've selected before the ban phase in champ select the amount of times I've locked in Yasuo (main) and then my own team bans him is ridiculous only to be told "sorry" " should've said something about it" " sorry can't be bothered to see who you were gonna pick" etc.... Obviously it doesn't have to be this exact method but any way a ally can't ban your champion would be fantastic:)