failed case review/suspended

You can be suspended for actions performed before the ban was enforced. If you tried to file a case review and you failed just wait 24 hours to try again.

In meantime I suggest you to read the Code of Conduct.

A com ban does not last very long. There is no way to have a case review for that. If you get suspended then you can have a case review for that.

I'm afraid there's nothing more that can be done. If the account was suspended permanently, and you requested a case review, and that case review was upheld, that's it. I'm sorry.

Hi there,

Please visit https://enforcement.xbox.com/en-us to submit a case review, if you couldn't find an option to submit one. If your account suspended for two days, you won't be
able to submit a case review.

my account suspended from 12 september to 27 september

and i try from yesterday to submit a case review but i failed answer

then he tell me to wait 24 hour

I do not see any reason why I answer because I'm sure I did not and will not break Microsoft's rules

and the xbox support can see everything in my profile to make sure I did not break Microsoft's rules

please help me to unsuspension my account

If you think that this suspension was issued in error, you can file a case review, if the suspension lasts for more than 24 hours.

To file the case review, go to https://enforcement.xbox.com/ and sign in with your suspended account.

Click on the yellow tile with the hammer on it, and click on the currently active suspension and file a Case Review.

If the suspension is "only" for 24 hours, you'll just have to wait it out, as a Case Review would take longer than the actual suspension, and keep you suspended longer.