I bought the games directly from steam...
If a game was purchased through Steam with a
credit card, please provide the following:
The Card Type (Visa, MasterCard, Discover, American Express)
Full Name on the Card
Expiration Date
The last four digits of the credit card number - Do not provide the full credit card number
If a game was purchased through Steam using a PayPal account, please provide:
The Billing Name on the PayPal Account
The full Billing Address on the PayPal Account
The PayPal PayerID
The Invoice ID and the Transaction ID