buy virtual points using facebook credits as currency
<p>What my requirement is?
I want to implement the In-App purchase functionality in my facebook game app.
I will add some In-App purchase in app like below: Buy 100 Credits: $0.99
Buy 600 Credits: $4.99
Buy 3500 Credits: $19.99
So, suppose user buy the 100 Credits in $0.99.
And after some days suppose, after 10 days, user uses all these 100 credits. And he wants to buy more credits. Then he is purchased 600 credits in $4.99.
We can tract that user uses all his credits and we will ask to user to buy more credits.
But what type of In-App purchase will be better for that?</p>

<p>If anyone have any idea about this then please help me..</p>

<p>Its urgent.</p>

<p>Thanks</p>
