You can check why your account was suspended (freeze) from the page where your payment information is displayed in My Services.
For information on how to check your payment information, please refer to the page on how to check your current contract details and charges.
Please contact support to unsuspended your account.
Example of display:
About "because there is no answer"
If there is no reply within a certain period of time, the account will be frozen "because there is no reply".
If you receive an email saying "[Important: Reply required] Confirmation and response regarding the detection of unauthorized content"