[Crosseye_Jack]

Was your user account closed or the workplace account closed?

If it was the workplace account that was closed the. It could be because you had users connecting to it from inside Iran and not yourself personally.

It if you got booted from a workplace because they though you were in Iran I would say contact them and ask they why they believe so, that you are not in Iran and your ip addresses that access to the service back you up.

Think of the pubic shitshow it would cause if a major yech company were banning U.S. citizens/residents because of their race/nationality. Simply because of the optics and legal repercussions behind such an epic fuck up if it ever came to light I doubt slack have staff going though account names looking for Iranian sounding names to ban off the platform and are using other metrics to determine where the user account or workplace account is actually based.