diff --git a/toxygen/contacts/group_chat.py b/toxygen/contacts/group_chat.py
index b38e538..e89b561 100644
--- a/toxygen/contacts/group_chat.py
+++ b/toxygen/contacts/group_chat.py
@@ -11,16 +11,13 @@ class GroupChat(contact.Contact, ToxSave):
     def __init__(self, tox, profile_manager, message_getter, number, name, status_message, widget, tox_id, is_private):
         super().__init__(profile_manager, message_getter, number, name, status_message, widget, tox_id)
         ToxSave.__init__(self, tox)
+
         self._is_private = is_private
-        self._password = None
+        self._password = str()
         self._peers_limit = 512
         self._peers = []
         self._add_self_to_gc()
 
-    def set_topic(self, topic):
-        self._tox.group_set_topic(self._number, topic.encode('utf-8'))
-        super().set_status_message(topic)
-
     def remove_invalid_unsent_files(self):
         pass
 
diff --git a/toxygen/wrapper/tox.py b/toxygen/wrapper/tox.py
index ebb6aee..0e3310d 100644
--- a/toxygen/wrapper/tox.py
+++ b/toxygen/wrapper/tox.py
@@ -1,6 +1,5 @@
 # -*- coding: utf-8 -*-
-from ctypes import c_char_p, Structure, c_bool, byref, c_int, c_size_t, POINTER, c_uint16, c_void_p, c_uint64
-from ctypes import create_string_buffer, ArgumentError, CFUNCTYPE, c_uint32, sizeof, c_uint8
+from ctypes import *
 from wrapper.toxcore_enums_and_consts import *
 from wrapper.toxav import ToxAV
 from wrapper.libtox import LibToxCore
@@ -109,7 +108,6 @@ class Tox:
             self.group_invite_cb = None
             self.group_custom_packet_cb = None
             self.group_private_message_cb = None
-            self.group_private_message_cb = None
             self.group_message_cb = None
             self.group_password_cb = None
             self.group_peer_limit_cb = None
@@ -2393,7 +2391,7 @@ class Tox:
         result = Tox.libtoxcore.tox_group_mod_set_role(self._tox_pointer, group_number, peer_id, role, byref(error))
         return result
 
-    def group_mod_remove_peer(self, group_number, peer_id, set_ban):
+    def group_mod_remove_peer(self, group_number, peer_id):
         """
         Kick/ban a peer.
 
@@ -2403,14 +2401,20 @@ class Tox:
 
         :param group_number: The group number of the group the ban is intended for.
         :param peer_id: The ID of the peer who will be kicked and/or added to the ban list.
-        :param set_ban: Set to true if a ban shall be set on the peer's IP address.
 
         :return True on success.
         """
 
         error = c_int()
         result = Tox.libtoxcore.tox_group_mod_remove_peer(self._tox_pointer, group_number, peer_id,
-                                                          set_ban, byref(error))
+                                                          byref(error))
+        return result
+
+    def group_mod_ban_peer(self, group_number, peer_id, ban_type):
+
+        error = c_int()
+        result = Tox.libtoxcore.tox_group_mod_ban_peer(self._tox_pointer, group_number, peer_id,
+                                                       ban_type, byref(error))
         return result
 
     def group_mod_remove_ban(self, group_number, ban_id):
diff --git a/toxygen/wrapper/toxcore_enums_and_consts.py b/toxygen/wrapper/toxcore_enums_and_consts.py
index 4d09338..7c6478c 100644
--- a/toxygen/wrapper/toxcore_enums_and_consts.py
+++ b/toxygen/wrapper/toxcore_enums_and_consts.py
@@ -911,6 +911,17 @@ TOX_ERR_GROUP_BAN_QUERY = {
     'TOX_ERR_GROUP_BAN_QUERY_BAD_ID': 2,
 }
 
+
+TOX_GROUP_BAN_TYPE = {
+
+    'TOX_GROUP_BAN_TYPE_IP_PORT': 0,
+
+    'TOX_GROUP_BAN_TYPE_PUBLIC_KEY': 1,
+
+    'TOX_GROUP_BAN_TYPE_NICK': 2
+
+}
+
 TOX_PUBLIC_KEY_SIZE = 32
 
 TOX_ADDRESS_SIZE = TOX_PUBLIC_KEY_SIZE + 6