Hi, welcome to clraik first off!
TNT can ban your internet IP address, yes, if you are caught cheating repeatedly and they do not like you. If this happens you can either:
A) Use a proxy to access neo
or
If you're network provides dynamic IP's then just unplug your internet modem for about 10 minutes and power it back on for a new IP.
Also, no idea about the person you're naming..