Hm, whether you did something wrong or not, which I have no opinion on due to the fact we have no evidence to justify this ban and the only person giving us information is the defendant(you).... Anyways, regardless if you did something wrong or not, Riot should take this opportunity to IMPROVE on communication. The fact you have been banned, and info they sent to your email was generic copy paste with NO justification or reasoning for your ban is very illogical. Just based off those grounds, I would argue Riot owes you an apology of some sort. Either way, I would do what others have said in this thread and contact Riot support for additional info. Heck, if anything, link them this thread as well.