In case you are looking to purchase an Addon Service for the product you purchased from WHMCS Global Services?
Here are the steps you need to follow:
Step 1: Login into your client area.
Step 2: Click on My Services Tab
Step 3: Here you will find all the products and services that you purchased from WHMCS Global Services.
Step 4: Now click on the Manage Icon for which you need to purchase the addon service.
Step 5: Click on the Addons from the Tabs
Step 6: Select the Addon Services that you need to buy.
Step 7: Click on Buy Now to complete your purchase.