Automated Punishment With Zero Transparency

I've had a similar experience to you and tried seeking help from EA forums or other official channels, but based on my experience, I regret to inform you that we cannot obtain any substantial assistance from other sources. The TOS department is completely uninterested in processing appeals, and other departments neither have the authority to handle them nor are willing to assist. They simply tell you to keep throwing stones into the ocean at their TOS department, even though this is indeed the only way to unban your account under the current EA terms of service. Unless you have connections with senior personnel within EA, or you can find professional players willing to help you—and as everyone knows, professional players are their golden children. EA will bend over backwards to accommodate them, while they don't care about ordinary players.