Tangentially related... in one of my last convos with an American Express business rep, they noted I set my cashback preference to advertising purchases. I was

Tangentially related... in one of my last convos with an American Express business rep, they noted I set my cashback preference to advertising purchases. I was informed by them that Google Adwords has a history of 'blackflagging' accounts. He said they could generate up to 100 cards with unique numbers for free to my account and that it was fairly common for agencies to have big split-ring binders full of cards tied to each client.