Account banned after hack

character:Lööv
Realm:Nostalrius pvp
My account got hacked a few days ago and my gold was taken and nothing more, immediately changed the password and have since played about five days and now im banned?
Realm:Nostalrius pvp
My account got hacked a few days ago and my gold was taken and nothing more, immediately changed the password and have since played about five days and now im banned?