Hey, I have a buddy whos letting me use his adwords account. He has his card attached right now. I want to add mine and use the account. I'm connecting to his computer via RDP to use it. When I go to add payment method - I add the Card # and *** and Expiry. - Do I leave the billing info as his or do I change it to mine? What is the proper way to get his account working legit under my card. Thanks!