1º If your account is blocked with a "HELD" message you must wait for the days that it presents to you in screen, without using trade / transfer.
This may happen when you disable the first security option
When you have been attempted to steal and taken as a security measure
When you are released from a blockade, but it is usually 5 to 7 days from held
When you are uniquely logged into your account, from different locations or the internet.
In case it is a hold lock, just wait for the days to pass and you release, if the lock is not removed, change the password of your xat account
Then wait again, and if the lock is still there, check that it is not connecting from different locations and the internet.
The last thing is to send a ticket in the department "Account hold": How to send it: GUIDE
2º If you are banned in the Trade xat
Ask a friend or someone to check the "EVENTS" option to see the reason for their ban on that chat, you will see the time and the reason.