Bot asks user data and records data in turn in notepad. But for some reason does not record the phone number. What is the problem? I use PyTelegramBotapi

import telbot
From Telebot Import Types
Import OS, Signal, Pickle, Sys
Bot = Telbot.Telebot ('Token')
@ Bot.Message_Handler (Commands = ['Start'])
Def User (Message):
  Sent = Bot.Send_Message (Message.chat.id, Hello, how can I contact you? ")
  Bot.register_next_Step_Handler (Sent, Services)
  Doc = Open ('Client.txt', 'A')
@ Bot.Message_Handler (Content_Types = ['Text'])
DEF SERVICES (Message):
  user_markup = telbot.types.replyKeyboardMarkup (one_time_keyboard = True)
  user_markup.row ('BUY', 'SELL')
  USLugi = Bot.Send_Message (Message.from_user.id, "What services are you interested in?", Reply_markup = User_Markup)
  Bot.register_next_Step_Handler (USLugi, Telephone)
  Doc = Open ('Client.txt', 'A')
  Doc.Write ("Customer Name - {Name} \ N" .format (name = Message.Text))
DEF TELEPHONE (Message):
  Keyboard = Types.ReplyKeyboardMarkup (one_time_keyboard = True)
  REG_BUTTON = TYPES.KEYBOARDBUTTON (text = "Send phone number", Request_Contact = True)
  Keyboard.add (reg_button)
  Nomer = Bot.Send_Message (Message.chat.id, 'Leave Your Contact Number In order for our manager to contact you.', Reply_markUp = Keyboard)
  bot.register_next_step_handler (NOMER, SAVE)
  Doc = Open ('Client.txt', 'A')
  Doc.Write ("Service - {service} \ n" .format (Service = Message.Text))
Def Save (Message):
  Bot.Send_Message (message.chat.id, 'thanks for the appeal. We will contact you soon.')
  Doc = Open ('Client.txt', 'A')
  Doc.Write ("Phone - {Telephon} \ N" .format (Telephon = Message.Text))
  Doc.Close ()
if __name__ == '__main__':
   bot.infinity_polling (none_stop = true)

Answer 1, Authority 100%

Because not Message.Text , and message.contact.phone_number

doc.write ("phone {telephon} \ n" .format (Telephon = Message.contact.phone_Number))