We are aware that some people are having issues getting their Prestige Pack code. We are working to resolve issue as we speak.
If you haven't received your code yet (you should normally receive it within 10-15 minutes) then you're experiencing this issue.
The good news is that your Paypal account or credit card has not actually been charged (regardless of the payment confirmation). Please check your account or card just to make sure. Bad news is, you'll have to go through the purchase process again once it has been fixed.
If your account or credit card has been charged the $15 amount and you haven't received your Prestige Pack code, please contact our Customer Support (https://lineage2.custhelp.com/app/ask/) immediately for assistance.