We need a report option for "stole my role/screwed up role in champ select"

I got into a ranked match only to have a team mate decide to afk choose jungle, even though he was auto filled support.

I tried to ask him what he was doing and got no response. So if he wasn't going to respond I guess I would auto fill instead as support. Im upset but I can deal with it. (The fact there isn't a report option for this is ridiculous).

10 seconds before the match starts I see him swap to exhaust and start saying "sorry wasn't looking" which screwed me over so hard because I had chosen my support already and had to frantically swap to smite so we didn't have a smiteless jungler. So I am in a ranked match with a jungle I have never tried before with runes and masteries I am not even sure I want on my champion.

This doesn't happen often (i hope) but it should be ban worthy/ a full reportable cause if they screw you over in champ select in the reason is even as small as "I wasn't looking".

The fact this isn't reportable is beyond me. We have the role select to help us know which roles we are. Riot please just do this.

Joke punishment(so I can vent a bit): Also maybe as punishment those who suffer from this report should be spammed "You are (insert role)" all across the screen as they select their champion so even they cant miss it and if they pull it again they are insta banned