All suspended items, be it a product, service or a category, continue to remain in the system's database and is hidden from active items. If you need to recall the item, you simply have to reactivate it.
To reactivate a suspended service:
Step 1: Go to the Products tab and select Services.
Step 2: The list of service categories will appear. Click on More and select Show Suspended.
Step 3: Locate the service in question either by selecting from category list or alternatively, enter the service name through the search field above.
Step 3: Once the service is found, click on the name to open the service details and change the status from Suspended to Active and click Save.