It's very simple to get this free advertising credit. I've actually gone through all the steps except for part when I had to enter my credit card information. Nonetheless, hope this helps someone with their business.

First you need to log onto your Facebook account and search for the "Visa Business Network" application and add it.

Enter all the information regarding your business and contact preferences.

After successfully registering, you will receive an email with the $100 coupon code and a link to redeem coupon.

Click on the highlighted link and then create the ad..

...and set the targeted audience, pricing quotes and other options.

Lastly, enter your credit card information. Initially expect an authorization charge to your car, however, it's only temporary and will fall off typically within 3-5 business days.


******PLEASE NOTE*******
If you don't want to be charged after your full credit has been used, stop your ads before the next billing cycle to avoid any additional charges.