When your account has been suspended, your published pages will still be live - you just aren't able to edit them.
To release your account from suspension, you'll simply need to go update your billing info with your credit card information in order to gain access to your pages again.
To update the billing information of your Unbounce account:
- Log in to your Unbounce account
- Click your name in the top right corner, then select My Account
- Select "Account Overview" in the left side
- Select the "Billing" option