realize Apex got ban after Cross Progression and they keep saying i am cheating

Heya @kanoenn 

Account issues such as bans and suspensions cannot be assisted with here on AHQ.

There isn't really anything that can be done if they've rejected your ban dispute, you could try to send in another ban dispute unless they've told you to stop submitting cases regarding the ban.

It's entirely possible that your account was compromised and that another player has been cheating on your account, which might explain why you got banned on cheating despite having played only on console so far.