Ban Skips (10 game chat restriction then 14 day suspension)

Hey guys,

I recently received a 14 day ban due to negative behaviours which I understand why, I was recently quite negative to some people that lane stole me. My last punishment was a 10 game chat restriction which is the first ban you ever get which was 8 MONTHS AGO (last year) and 8 months later Riot gives me a 2 week suspension instead of a 25 game chat restriction which was what was meant to be the next punishment. Ive been doing alot of researching about the bans and it says on the boards that it goes 10 game chat restriction then 25 then 2 week then perma bans, and if you dont get a punishment 3 months after you punishment it goes down a tier meaning I should be getting my 10 game chat restriction again or atleast moving on to the next punishment, the 25 game chat restriction, Ive sent tickets to riot concerning this but all I get is why I received it but they havent answered why they skipped it, this is quite heart braking because you would think that a game like League of Legends would have a proper ban system and abide their ban rules? Can anyone please help me concerning this, or if this has happened to you.

Thanks.