I am in the midst of adding gift certificates to my shop. I understand the process, how to set them up and so on... But this question just came to mind while I was reading other threads here.

My customer purchases a $50.00 gift certificate. I get the admin gc alert email. I get an email from Paypal saying the cash purchase was made and completed. I go to my admin area and release the gc.... >>>

Now >>>

The customer gets the email with the code, sends it to a friend. The friend visits my shop, creates an account and enters the code for gc redemption. The $50.00 is now in their new account. Lets say the friend purchase $30.00 worth of products including shipping... >>>

How will the $30.00 appear in my Paypal account? Since technically THAT $30.00 is already a part of my Paypal balance, will a $0.00 dollar amount be sent to my Paypal or will no amount be sent at all? How will this work?

Thanks