Facebook Coins what are they for?

[gmoney]

I have a bunch of Facebook coins. What games can i use them on. Everything is Facebook Credits and i refuse to use my credit card to purchase Credits is there a way that i can use my coins to get credits i play Farmville and petville can i use my coins on those games...

[Esther Loh]

Question:How do I get Facebook Credits and what can I use them for?
Answer:There are a few ways that you can purchase and use Facebook Credits.
To purchase Facebook Credits, click on any premium item in this app's store with a Facebook Credits icon underneath or choose to purchase in-game cash or coins.
The purchase process may be different in different games but in all Facebook Credits enabled games you will be able to use your Facebook Credits.
Additionally, you can purchase Facebook Credits from the Payments tab in your account.
From this tab you can click the Buy More link to begin the purchase process.
If you choose to purchase credits from the 'Buy More' link the process looks like the following:
You will be prompted to select your desired payment method in the first step.
In the second step ,you can choose your desired amount of Facebook Credits to purchase.

Question:Where can I purchase Facebook Credits?
Answer from facebook Help Center:Facebook Credits are available for purchase through any game on Facebook that accepts payments.
To purchase Facebook Credits within a game, click on any premium item in an app's store or choose to purchase in-game cash or coins.
The purchase process may be different in different games but in all Facebook games you will be able to use your Facebook Credits.

Question:I made a purchase in a game. Why was I billed by Facebook?
Answer:Now, all game developers accept Facebook Credits to pay for their game items. If you previously were billed by a game developer for cash, coins, or points, the charges associated with these items are now be processed by Facebook and will appear as coming from Facebook on your credit card statement.

Question:How do I purchase Facebook Credits by mobile payment?
Answer:To purchase Facebook Credits with a mobile phone, click on any premium item in an app's store or choose to purchase in-game cash or coins.
The purchase process may vary in different games, but any game on Facebook that sells premium in-game items will accept Facebook Credits as a payment method.
Once you have selected an item to buy, you can complete the purchase using your mobile phone by following the instructions below:
Click on the "More Payment Options" link if Mobile phone is not among the visible payment methods.
Select "Mobile phone" and the country associated with it.
Note: If you already have a mobile phone number saved in your account but would like to pay with a new number, click the "More Payment Options" link, then select "New mobile phone" and finally select the country.
3.Select the amount of credits you would like to add to your account.
4.You will now be prompted to enter your mobile phone number. Click "Continue" once you have done this.
Note: The payment panel displayed above and the subsequent steps may be different depending on your country and your mobile phone carrier.
Their mobile payment providers, Zong and Boku, will send you a text with instructions.
Your computer screen will also update with directions when necessary.
Please note, charges go on your wireless bill or prepaid account.

The above problem can help your friends facing the problem as mention above^^
Any problem,please visit Facebook Help Center website.
All the best and good luck ^^