Concise information on fort defense rewards isnt readily available on the web it seems.

So I took the info from Thats Too Bad's leak on patch notes and made it easy to read:

All the payment processes are handled by Paypal and we do not hold any of your personal finance data. Once payment is processed, we will deliver cheap Aion Kinah, Aion gold to your ingame mail box within 10 minutes-24 hours.