Your bill will be made 30 days prior to the date your contract ends. You should add the amount to Z.com Charge before being made the bill and then it will be automatic renewed. It will be informed you via email.
If you wish to disable the automatic renewal, you can change it to [OFF]. Please follow the steps below:
1. Log in to My Z.com
2. Click [WordPress] on the top
3. Choose the WordPress server
4. Change the [Automatic Renewal] status to [OFF]. The item is listed under [Server Information]