We recognise that when you are having issues with your bank account or online account, it frequently occurs. Nothing except the employees of your individual banks can assist you in this situation. For this reason, we have listed Morgan Stanley Bank’s contact information. The phone number to call them at is 1-888-454-3965. Call 1-801-617-9150 if you live outside of the United States to get in touch with them.
Source: https://www.accountiod.com/morgan-stanley-login/