[Denied] Banned? Why?

[[SRT]ArtemNet]

Nickname: [SRT]ArtemNet
Date of the ban: 04 April 2008, around ~11 PM (+3:00 GMT)
Suspected Reason: Money
Your IP address: 83.237.195.51

I restart my computer and IP can be change... (But I can't connect to server...)

i go to bank and use command /withdraw for buy a house.. But when i be near buy zone (mini green house), me banned(

Why?

P.S. Sorry for my English, i am from Russia...