Is there a service that can be communicated to investors in time through information when buying and selling stocks?

Yes, telephone commission, free service.

Just provide the stock account number and login transaction password.

You can also log in and check the transaction records yourself, but don't change the password or hang up the bill. Everything is operated by the broker.

Just don't tell anyone about the fund account number. When the stock is sold, it will be transferred to the bank account, and it will eventually be yours! ! !