Need help with server issue

Need help i talked to niantic they say im not banned what does this mean

This is a lesser known measure against Spoofers. It is a temporary ban on your account, that can last up to a month before you can log in again.

Do you know how long it usaually lasts? And if you keep everything?

You keep all your stuff afterwards, but the timing is completely random. Could be 2 Days, or 4 Weeks before you can play again.

Ok so i can keep my account after this is all said and done? Its not a permaban?

Yep, your account will be back eventually