This is one of the few areas where the official answer is the correct one and the forum answer is not.
Short answer
It is handled through the publisher account rather than in-game, and the limits are per-account rather than per-character.
Linked accounts inherit restrictions from each other more often than people expect. Support responds slowly and correctly, which is still faster than a wrong fix. What follows assumes you are on a current install and have not modified it.
Why shortcuts end badly
Region locks on accounts are harder to undo than region locks on purchases. Name changes and cooldowns are enforced per-account, not per-game. There is no hidden trick here that the game is keeping from you. Two-factor authentication is the single change that prevents most account problems.
Appeals work when there is a genuine mistake, and only then. The short version is near the top on purpose; the reasoning is there if you want to know why. Bought and shared accounts are recoverable by the original owner, which is exactly how those stories end.
What the rules actually say
Most of the disagreement you will find online is two people describing different builds. Screenshots age faster than text, which is why this describes rather than shows. Nothing here assumes a particular playstyle beyond wanting the thing to work.
- Keep the original purchase receipt.
- Enable two-factor authentication before anything else.
- If a menu path does not exist for you, your build is older or newer than the one described.
- Use the official support form rather than a forum thread.
- Unlink anything you no longer use.
If the account is already restricted
Anything that behaves differently on console than on PC is flagged where it matters. The developers have changed their mind about this at least once, which explains the older advice. It helps to understand why a step exists, because then you can adapt it when your situation is slightly different. Half the pages on this topic were written for a build that no longer exists, which is why they stop matching what you see.
None of this needs a paid tool, a third-party launcher or an account on a site you have never heard of. If you are coming to this after a long break, the terminology has probably moved on. Where something depends on your platform or region, that is called out rather than glossed over.
Limits and cooldowns
If a step reads as obvious, do it anyway — the obvious ones are the ones people skip and then wonder about. Treat anything stated without a version number as provisional. Do the cheap check before the expensive one — that ordering alone saves most of the frustration.
Where two approaches both work, the one with fewer moving parts is the one to keep. A single check up front replaces a lot of guessing later. If your result differs from what is described here, note what is different first rather than starting over.
Doing it through official channels
There is usually a fast way and a reliable way, and it is worth knowing which one you are choosing. The community wisdom on this is roughly half right, and the half that is wrong costs the most time. Everything below is framed around the current state of Call of Duty rather than a launch-week impression.
Where people go wrong
- Copying a setup wholesale from a streamer without understanding what each part does.
- Changing five things at once and then not knowing which one helped.
- Ignoring the platform-specific note and then wondering why the steps do not line up.
Call of Duty FAQ
Do I need any mods or third-party tools for this?
No. Everything described here works with the base game on any supported platform.
Can a ban be appealed?
Genuine mistakes get reversed. Appeals against a correct ban do not, regardless of how they are worded.
Why do other guides describe this differently?
Most were written for an earlier version and never revisited. Compare the steps against what your build actually shows.
Is this still accurate after the latest Call of Duty update?
The method is; individual numbers may not be. If a value on your screen differs, trust the screen and keep the sequence.
If you only take one thing from this: the answer near the top is the part that matters, the rest is context.