If you'd like to submit an invoice for offline payment processing, you can easily do so with just few clicks.  Here's how:

1. Log-in & visit your profile (Control Panel > View My Profile)
2. Click on the Subscription Tab.  There you will see your current subscription status, expiration date for upgraded subscriptions, and payment history.
3. If you are eligible to upgrade (i.e. have never upgraded or upgrade expired), click the Upgrade button shown near the bottom.
   
   1. If your Pro-Upgrade subscription is current & you're within the last 90 days of your subscription, you'll see a Renew button instead.
4. On the following page you're presented with your billing address information & payment options.
   1. If you need to update your billing address, click "Click here to modify invoicing address" (as shown in the image below).

 

• Select a Payment Method
  • Pay one time via credit card or PayPal using the Buy Now button.
  • Setup a PayPal payment subscription via the Subscribe button. This allows you to manage the subscription payment via PayPal, and it will automatically update your account here annually until canceled via PayPal.
  • Click Pay by Check to generate an invoice (a.k.a Payment Slip).

After selecting Pay by Check you're shown the amount due, remit-to & tax information, and provided a link to display a payment slip for printing (as shown below). 

Finally, click the link above to confirm, then print the invoice/payment slip and remit as noted.