Perma chat ban even when i say nothing

Every time i get unbanned for chat i instantly mute both teams dont say anything into chat other then my jungle timers and then i get into my next game and im banned from chat again? Is anyone having this issue its really bugging me and its really obnoxious. Also i dont see any warnings coming up for getting reported which makes me think its a bug.
Report as:
Offensive Spam Harassment Incorrect Board