The Intentional Ban system is pretty stupid sometimes it gets it wrong even if you don't truly Intentional Feed.
The best thing you can do is review your game and appeal to Riot, its not always a 100% success at an appeal but Riot will take it more serious if its a perm-suspension to actually look into the matter rather than 2 weeks, if you got banned for 2 weeks you can likely easily just reset and make it go down in tiers easily just don't flame or type toxic stuff in chat (/mute all) is your friend...
It comes down to how you define Intentional Feeding, or feeding in general, ( My first game since 2 week suspension for Intentional Feed) great no toxic players, sure the players I was with were somewhat bad had no idea what they hell to do typical bronze, but no one was toxic ( I didn't have to type /mute all) and was able to play without toxicity, but lets look how I feed stupidly and you can call it Intentional because I knew I was likely going to die but I went in anyways trying to help my allies saved the turret and still died as a result, sure I could have prevented my death by having a team-mate have understand of dropping a ward so when I went in I was able to land all 3 ability's on the enemy and get the kills instead of end up dying :3....
http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2176811265/37682357
Yep I Intentionally Feed 7 deaths again for knowing I was likely going to die makes me sad.... Perhaps Riot should make a rule against trying to help your allies and dying...
You are ineligible to earn loot due to previous behavioral restrictions.
Riot do you think I care Loot is only on S rank, and it takes many many boxes to get anything worth-while, if it were like DOTA 2 o nthe other hand I would care, While personally I wish to keep a positive attitude, and rather not feed my games intentionally the loot system means nothing to me.