Because I don't know which fund company you bought, I can't help you with the specific answer. But generally speaking, these things are generally sent to you by fund companies. You can use your ID number or fund account number (provided by the bank or the letter) to log in to the inquiry service of the fund company, and then change the status. Don't customize these services, so that the fund company will not send you any more emails, but generally speaking, the responsible fund company will send letters to the people on a monthly or quarterly basis, and you can change a safe address through the agency (China Construction Bank).