Got leaver ban due to this several times

In short- I pick my champ in champ select, set runes and masteries I go to youtube to watch videos and don't even notice that it hs been 5 min since champ select I go to league icon and i am at client home where i can't start a new game I re-login and see game has started I try to reconnect but the game has been remade due to my afk status. THIS IS NOT FAIR AT ALL... AT ALL... THIS HAS HAPPENED MORE THAN 10 TIMES ALREADY
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