If you’re one of the people who meet a certain set of criteria, you could get up to $4 in extra Facebook Credits for every $1 that you spend, according to a blog post from the company. The deals happen with special promotions, but they aren’t available to everyone.
There are two methods for getting the extra Credits that are running right now. In one method, you’ll need to be lucky enough to catch an ad that will extend the offer to you. In the other, you can redeem your $1 purchase for up to $5 (total, including Facebook’s “free” credits) for in-app currency, as pictured below:
Facebook’s disclaimer at the end of its post states that you’ll need to make the purchase via a credit card or PayPal account, and those to whom the offer is extended “may not have previously purchased on Facebook”. It would stand to reason then that your chances of seeing the extra Credit options would be higher if you’ve not purchased credits through the site before.
Whether the service has truly taken off yet or not isn’t well known. Even the company’s S-1, pre-IPO filing, didn’t have much to say about it. So while they might not have changed the world just yet, giving away free money is a quick way to attract new customers.