Pretty sure this should be on PB&M.
Did you report them? You'd be amazed at the number of people who complain about people getting away with stuff in their games and then admit that they never report people. Report for feeding and then in the comment box write down that they planned on int'ing from the get go so the logs will get a review.
The FeederBuster and LeaverBuster assume bad days/games. They go after a pattern of behavior. This is why actually reporting people is important so the chat logs will get a review if people say they will int.
Chat bans are easy in comparison. All the system has to do is scan for phrases/words and punish accordingly once a report has been submitted.
Also remember there are a number of punishment levels that are invisible to anyone not the person being punished. Like LeaverBuster, the only way someone knows you're on it is if they queue with you or you tell them. You will only be informed of someone getting punished if your report was the last one submitted.
but you know a cpl days ago when my electricity went out i had to wait for 20 minutes before 5 games to get into a match.
But prior to that you got your first warning, then you left some games, then you got your 5 minute wait for 5 games, then you left some more games, then you got the 10 minute wait for 5 games, then you left some more games. You don't get the 20 minutes for 5 games until you've left a lot of games. LeaverBuster assumes accident/emergency/circumstances beyond your control. Electricity going out may have been the capper on this tier of punishment, but you've had a history of leaving prior to this.