How to suspend and unsuspend an account?
In this section we'll show you how you can suspend and unsuspend your clients' domains in the WHM of your Reseller plan.
After accessing the WHM of your Reseller plan, navigate to “Account Functions” => “Manage Account Suspension”.

Below we will detail the different items in the image:
(1) => allows selecting the domain to suspend or unsuspend. You can search it by domain name or by cPanel username.
(2) => used to suspend the selected site.
(3) => used to unsuspend the selected site.