diff --git a/contact.xlsx b/contact.xlsx
index 5e2d70a..04e9129 100644
Binary files a/contact.xlsx and b/contact.xlsx differ
diff --git a/export_valid_profiles.py b/export_valid_profiles.py
index b1d622a..6ec7e9e 100644
--- a/export_valid_profiles.py
+++ b/export_valid_profiles.py
@@ -38,8 +38,6 @@ def write_the_valid_profiles_to_excel():
                                   mail=reserve_pojo.email, position=0)
             seed = 8  # number of characters in the string.
             # call random.choices() string module to find the string in Uppercase + numeric data.
-            ran = ''.join(random.choices(string.digits, k=seed))
-            contact.mail = "{}_{}{}@163.com".format(contact.first_name, contact.last_name, ran)
             # contact.passport = get_random_id_number()
             # if contact.passport == None or len(contact.passport) == 0:
             #     old_contact = [item for item in exist_contacts if item.mail == contact.mail]
diff --git a/main.py b/main.py
index d6945e8..80cb54e 100644
--- a/main.py
+++ b/main.py
@@ -18,6 +18,7 @@ from pojo.ReserveResultPojo import ReserveResultPojo
 from pojo.serial_modem import SerialModem
 from utils.excel_reader import ExcelHelper
 from utils.message_receiver import MessageReceiver
+from utils.operator import check_operator, Operator
 
 OTP_TIMEOUT = 180
 is_finished = False
@@ -68,7 +69,9 @@ def timeout_occurred(serial_modem: SerialModem):
 def start_to_handle_sms(serial_modem: SerialModem):
     global current_gsm_modem
     current_gsm_modem = serial_modem.modem
-    # current_gsm_modem.deleteMultipleStoredSms(memory="SM")
+    if check_operator(serial_modem.ccid) == Operator.LYCAMOBILE:
+        # lycamobile
+        current_gsm_modem.deleteMultipleStoredSms(memory="SM")
     serial_modem.modem.smsReceivedCallback = handle_sms
     global is_finished
     is_finished = False
diff --git a/utils/operator.py b/utils/operator.py
new file mode 100644
index 0000000..9f9e0fe
--- /dev/null
+++ b/utils/operator.py
@@ -0,0 +1,15 @@
+from enum import Enum
+
+
+class Operator(Enum):
+    SFR = "SFR"
+    LYCAMOBILE = "LYCAMOBILE"
+    CHINA_TELECOM = "CHINA_TELECOM"
+
+
+def check_operator(ccid: str) -> Operator:
+    if "893313" in ccid:
+        return Operator.LYCAMOBILE
+    elif "893310" in ccid:
+        return Operator.SFR
+    return Operator.CHINA_TELECOM
diff --git a/utils/utils.py b/utils/utils.py
new file mode 100644
index 0000000..e69de29
diff --git a/wait_for_sms.py b/wait_for_sms.py
index 188d667..bc148ef 100644
--- a/wait_for_sms.py
+++ b/wait_for_sms.py
@@ -13,6 +13,7 @@ from modems.card_pool import CardPool
 from params import MODEM_POOL_PORTS, CARD_POOL_PORT
 from pojo.serial_modem import SerialModem
 from utils.excel_reader import ExcelHelper
+from utils.operator import check_operator, Operator
 
 OTP_TIMEOUT = 40
 commandor = CommandorPage()
@@ -48,7 +49,7 @@ def timeout_occurred(serial_modem: SerialModem):
 def start_to_handle_sms(serial_modem: SerialModem):
     global current_gsm_modem
     current_gsm_modem = serial_modem.modem
-    if "893313" in serial_modem.ccid:
+    if check_operator(serial_modem.ccid) == Operator.LYCAMOBILE:
         # lycamobile
         current_gsm_modem.deleteMultipleStoredSms(memory="SM")
     serial_modem.modem.smsReceivedCallback = handle_sms
@@ -94,7 +95,7 @@ def start_book():
         modem_pool.reset_all_modems()
         modem_list = init_modems()
         # create listeners for chaque modem
-        # read the contact, and contact the 2 objects together
+        # read the contact, and merge the 2 objects together
         excel_reader = ExcelHelper()
         contacts = excel_reader.read_contacts()
         global current_sim_position