Hi i'm trying to help my friend to purchase the subscription for the windy API using my credit card. However i would not want the information to be leaked to my friend to prevent him from using it. Can I ask if there's way for me to prevent that from happening? The email address used is from that friend of mine. I know that i can change credit card information on fastspring, but is it possible to remove my credit card information while sustaining the 1 year subscription?