Hello Martifu,
How are you?
It sounds to me like they think you were copy trading. But perhaps because the EA uses “web requests” and connected to that IP address, they think it may be copy trading?
Unless you allowed someone else to log in to your trading account?
Have you contacted their support to clarify or appeal the decision?
It might just be a simple misunderstanding and they lift the ban.
I hope this helps and your account is free to trade again.
Warmly
Matt