My account was locked due to unusual activities

So i came home 2 days ago, and when i went to login to my lol account, something popped up and told me that my account has been ''locked due to unusual activities''. I therefore went to their site and sent them a ticked. I got a reply with a lot of things i had to fill out. After that i waited another day, and riot messages me back and tells me that i haven't provided sufficient evidence for them to unlock my account. What should i do? I answered everything I knew, there is just a lot of things i don't remeber.
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