Account holders can open a new, linked account from within Client Portal. Please refer to: How do I add or link an account?
Once the new account is open, you will be able to transfer funds and positions internally from within Client Portal. Once the assets have been transferred, you will be able to close the account from within Client Portal.
If you are relocating to a different country, you should consider the following: Can I keep my account if I move to another country?