You need to provide supporting materials for account security change and account unfreezing. You can view the details on the following page:
1. Unbind 2fa, replace secure mobile phone and bind email: https://ascendex.com/en/support/articles/36214-how-to-reset-security-verification
2. Unfreeze account：https://ascendex.com/en/support/articles/36222-how-to-freeze-an-accountapp
Please provide your registered email address and a brief message. A customer support representative will assist you shortly!