Hi @MikaiTaiga,
Please do not open more threads on this. It breaks the forum rules on spamming/flooding the board. I've merged your threads together here to keep the information together. 🙂
I get it! It's never a great feeling to discover your account has been used by someone else, in this case, your sibling and that they broke the rules while on there leaving you with a ban. If the rules were broken, the ban would be correctly placed and is there to stay. You can learn more about EA bans and suspensions here: EA Bans and Suspensions - How they work and how to get in contact with us
As @EA_Darko mentioned, it's important to be aware that we all have to do our part to protect the account, yours includes ensuring only you are accessing your account on your devices and limiting who can play as you on there (i.e. it really should only be you playing on your EA accounts/games as account/game sharing isn't allowed).
@EA wrote:
You are responsible for the activity on your EA Account. Your EA Account may be suspended or terminated if someone else uses it to engage in activity that violates this Agreement.
- Section 1: https://tos.ea.com/legalapp/WEBTERMS/US/en/PC/
If your brother, or anyone else in your household, regularly uses the same device and you want to ensure that only you are playing the games on your account, consider password protecting your accounts and adding Login verification codes so only you can get past the security measures. I'd also recommend removing your account from shared devices so that it's only accessible from your personal device. That should help prevent others from playing as you on your games from your device. I'll share some helpful guides on how to set up some of those security features below:
As @OldTreeCreeper mentioned, we - on Answers HQ - aren't equipped to assist with account issues or bans/suspensions. As we can't help directly on Answers HQ and as there is nothing more we can add to help you with this, I'll close this off here. Please follow the advice shared in this thread for help with your issue and ensure you've read the forum rules before engaging further on this forum.
Thanks,
- EA_Lanna