diff --git a/src/db/mongo_manager.py b/src/db/mongo_manager.py
index c13ff57..bac81fe 100644
--- a/src/db/mongo_manager.py
+++ b/src/db/mongo_manager.py
@@ -2,12 +2,13 @@ import datetime
 import logging
 
 from pymongo import MongoClient
-
-from src.pojo.ReserveResultPojo import ReserveResultPojo
-from src.pojo.contact_pojo import ContactPojo
+from pojo.ReserveResultPojo import ReserveResultPojo
+from pojo.black_contact import BlackContactPojo
+from pojo.contact_pojo import ContactPojo
 
 MONGO_DB_URL = "mongo.lpaconsulting.fr"
 CAPTCHA_ERROR_COLLECTION_PREFIX = "CAPTCHA_ERROR_"
+BLACK_LIST = "BLACK_LIST"
 
 
 class MongoDbManager:
@@ -38,6 +39,18 @@ class MongoDbManager:
         except Exception as error:
             self.logger.info(error)
 
+    def insert_blacklist_contact(self, contact: ContactPojo):
+        collection_name = BLACK_LIST
+        black_contact = BlackContactPojo(contact.phone, contact.passport, contact.last_name, contact.first_name,
+                                         contact.mail)
+        try:
+            collection_to_use = self.db[collection_name]
+            collection_to_use.replace_one(filter={'_id': black_contact.mail, },
+                                          replacement=black_contact.to_firestore_dict(),
+                                          upsert=True)
+        except Exception as error:
+            self.logger.info(error)
+
     def get_captcha_error_contacts_for_current_day(self) -> list:
         day = str(datetime.date.today())
         collection_name = CAPTCHA_ERROR_COLLECTION_PREFIX + day
@@ -60,4 +73,6 @@ class MongoDbManager:
 
 if __name__ == '__main__':
     db_manager = MongoDbManager()
-    print(db_manager.get_captcha_error_contacts_for_current_day())
+    contact = ContactPojo(phone_number='0755667750', passport_number='123456789', last_name='PAN', first_name='Lei',
+                          mail='panleicim@gmail.com')
+    print(db_manager.insert_blacklist_contact(contact))
diff --git a/src/pojo/black_contact.py b/src/pojo/black_contact.py
new file mode 100644
index 0000000..b78b50d
--- /dev/null
+++ b/src/pojo/black_contact.py
@@ -0,0 +1,38 @@
+import time
+from typing import Union
+
+from pojo.contact_pojo import ContactPojo
+
+
+class BlackContactPojo(ContactPojo):
+    update_at_in_s: float
+
+    def __init__(self, phone_number: str, passport_number: str, last_name: str, first_name: str, mail: str,
+                 update_at_in_s: Union[float, None] = None,
+                 ccid: str = "",
+                 position: int = 0, ):
+        super().__init__(phone_number, passport_number, last_name, first_name, mail, ccid, position)
+        if update_at_in_s:
+            self.update_at_in_s = update_at_in_s
+        else:
+            self.update_at_in_s = time.time()
+
+    def to_firestore_dict(self):
+        dest = super().to_firestore_dict()
+        dest.setdefault(u'update_at_in_s', self.update_at_in_s)
+        return dest
+
+    @staticmethod
+    def from_firestore_dict(source):
+        ccid = source['ccid']
+        phone = source['phone']
+        position = source['position']
+        passport = source['passport']
+        email = source['mail']
+        last_name = source['last_name']
+        first_name = source['first_name']
+        update_at_in_s = source['update_at_in_s']
+        result = BlackContactPojo(ccid=ccid, phone_number=phone, passport_number=passport, position=position,
+                                  mail=email, update_at_in_s=update_at_in_s,
+                                  last_name=last_name, first_name=first_name)
+        return result
diff --git a/src/pojo/contact_pojo.py b/src/pojo/contact_pojo.py
index bcc51ec..7b31530 100644
--- a/src/pojo/contact_pojo.py
+++ b/src/pojo/contact_pojo.py
@@ -50,8 +50,8 @@ class ContactPojo:
         position = source['position']
         passport = source['passport']
         email = source['mail']
-        lastName = source['last_name']
-        firstName = source['last_name']
+        last_name = source['last_name']
+        first_name = source['first_name']
         result = ContactPojo(ccid=ccid, phone_number=phone, passport_number=passport, position=position, mail=email,
-                             last_name=lastName, first_name=firstName)
+                             last_name=last_name, first_name=first_name)
         return result
diff --git a/src/workers/commandor_page.py b/src/workers/commandor_page.py
index 1b52d41..666c2e5 100644
--- a/src/workers/commandor_page.py
+++ b/src/workers/commandor_page.py
@@ -36,7 +36,7 @@ TOO_MANY_REQUEST_ERROR_MESSAGE = "Due to a large number of requests"
 TOO_MANY_REQUEST_ERROR_MESSAGE_FR = "Suite à un trop grand nombre de demandes"
 CAPTCHA_ERROR_MESSAGE = "Error verifying captcha, please try again"
 CAPTCHA_ERROR_MESSAGE_FR = "La vérification du captcha a échoué"
-TIME_OUT = 10*60*1000 #10 mins
+TIME_OUT = 10 * 60 * 1000  # 10 mins
 OTP_TIMEOUT = 240
 PAGE_TIMEOUT = 40000
 
@@ -252,11 +252,12 @@ class CommandorPage:
             self.is_finished = True
             self.termine()
         elif TOO_MANY_REQUEST_ERROR_MESSAGE in erro_content or TOO_MANY_REQUEST_ERROR_MESSAGE_FR in erro_content:
-            # this email has been already used
+            # this email is in black list
             if not self.is_finished:
                 params.local_db_manager.insert_or_update(
                     get_captcha_error_contact_from_contact(self.contact, TOO_MANY_REQUEST_ERROR))
                 params.oracle_log_sender.send_too_many_error(self.contact)
+                params.mongo_store_manager.insert_blacklist_contact(self.contact)
             self.is_finished = True
             self.termine()
         elif CAPTCHA_ERROR_MESSAGE in erro_content or CAPTCHA_ERROR_MESSAGE_FR in erro_content: