1. Login to your Reseller panel.

 

2. Click on "Domains" option.

 

3. Select the domain name you want to Lock/Unlock.

 

4. Under more action option select "Domain Lock & Suspend"

 

5. Select the option "Lock/Unlock"

 

6. Select Lock or Unlock to perform the action on the domain (Give reason for Lock) and click on “Submit”