No respond from EA

rNoxh  Unfortunately, bans cannot be handled on the forums, (and to my knowledge, you have up to 3 chances to appeal a ban).

If you had already appealed your ban 3 times and those cases were closed, (especially if you were told to "not expect anything further"), then that does sadly mean that the ban will be upheld.

rNoxh wrote:

They had no reason to ban me and on my banhistory there is no reason for the ban.

While I'm not sure as to why, some bans may not appear in your ban history.

You should of gotten an email regarding your ban, (which may had ended up in the spam folder), although if it was sent to the spam folder, that email may had been automatically deleted as most email services delete spam after 30 days.

rNoxh wrote:

do you have any idea what I should do?

When it comes to banned accounts, the only thing you can do is to contact the EA TOS Team as they are the only ones who can handle locked, banned, and/or suspended accounts.