Why did the enforcement team ban me without warning

Bans can be handed out for any number of different reasons & more often than not come without warning. I'd suggest checking out enforcement.xbox.com and seeing what that says and if possible it's from there that you can start any appeals process.

Hello SAINTROW DA 3,

Thank you very much for bringing this issue to our attention. We're sorry to hear about the account suspension. The moderators, ambassadors and volunteer moderators do not have the ability to manage enforcement actions on an account.
We recommend to appeal the decision made by the enforcement team. This can be done by submitting a case review. The decisions
are made and upheld by the enforcement team. If you notice anyone that is violating the code of conduct, we suggest

blocking and reporting the player. The enforcement team will investigate the report and take the appropriate action. We hope this helps!

You can find information regarding your suspension by checking your Enforcement history which can be found here. https://support.microsoft.com/en-us/help/4026773/xbox-learn-why-your-account-was-banned-or-suspended-from-xbox-live

If your suspension lasts 48 hours or longer then you can submit a case review and possibly have your suspension nullified.

https://enforcement.xbox.com/en-US/home/howTo#sub-topic0-6

Also I can take picture proof which I already di I have no needs work on my profile and I checked my enforcement page and I have green bar.

Dear enforcement team

You have banned my account for no reason or giving me a warning I'm am very disappointed that y'all did to me. I thought you'll give a warning but nothing I really wanna talk to you guys by email or my phone a.s.a.p. please this isn't fair to everyone if
banned without a warning. So please contact me