Option to wait longer to get your desired role

It can be a option that costs BE or Riot Points but it should be possible for someone that wants to play only a specific role to do that. I do not want to spend 20-40 min of my life time playing a role that i dont want to play. Often times you get autofilled, the next game your secondary role and then autofilled again. Today i couldnt play Mid on my other account because Riot would just keep blocking me from having fun. Honestly i would even prefer to wait 30 min to get my desired role or pay 5 dollar per game. Doesnt have to be that much but Riot needs to do something about autofill.