Hey Jiwu_APEX,
Unfortunately we can't help with bans here. Only our terms of service team can help with bans, so if you've reached out to them I can only recommend that you wait for them to get back to you.
Playing at internet cafe's or using other peoples hardware is unsafe. Not only for your gaming account but also any other personal account you have.
You can read this blog for more info Players/Parents, video game control is in your hands. Account Security 101: | EA Forums - 12556453
What should I do now? The complaint is not intelligent at all. Before logging into my account at the internet cafe, I always confirm that there is no background software, and at the same time, I check the box to not remember me on this device. I will also confirm that my account has been logged out and my records have been cleared at the end of each session.
