What are advertising credits and coupon codes?
An advertising credit is a form of payment for your Facebook ads. Credits may be offered through partnerships Facebook has with other sites or companies, or through periodic promotions. If you have an advertising credit on your account, ad charges will first be deducted from the credit, and your credit card will be charged when the credit has been depleted or expired.
You may receive Facebook ad credits by email from facebookmail.com. The coupon code can be activated through the email or through Facebook's online ad system and then becomes an advertising credit. This advertising credit can be redeemed for advertising on Facebook. Coupon codes for Facebook ads are given out from time to time as part of special promotions.
Keep in mind that it's not currently possible to purchase or request credits from Facebook.
