If you are sure that the reason why you can't log in to the delegation is that you have forgotten your password, you can try it several times. Soochow securities won't lock your password. If you really don't remember, you can bring your ID card, shareholder card and fund card (proof of identity) to the business department to clear the secrets before you can use the account.
However, the failure to log in is not necessarily a password problem. Maybe the business department is selected incorrectly, or the account type does not correspond to the entered account. I suggest you call soochow securities Customer Service at 400860 1555, and let the staff confirm it for you first.