Are there any fees or advance deposits to open a live account?

There is no fee or advance deposit of funds to open an account. When you want to trade after opening an account, you can deposit money and start trading.

Will my account be frozen permanently if my balance equals to zero?

We normally do not have policy to close or freeze an account once your account have been verified by ADSS. However, you will not be able to conduct any trading until you add funds into the account.