STEP::1 Login to the client area.
STEP::2 On the menu bar, click on Billing and select My Invoices option.
STEP::3 To view any particular invoice or pay for unpaid invoice, click on the View Invoice button.
STEP::4 You have two options to pay for your unpaid invoices: Pay using available Credit and Direct Payment.
STEP::5 You can also pay through your available credit balance.
That's It !
Check out the video tutorial to get the procedure in detail. You may refer to the blog as well.