Cardholder Agreement 里面没有提到不能买什么,只说过买这些东西可能不给points
Points will not be awarded for any billing cycle if your Account is closed or is not current on the closing date for that billing cycle. Points will not be awarded for transactions posting as Convenience Checks, credit insurance premiums, Advances (including wire transfers, traveler’s checks, money orders, foreign cash transactions, betting transactions, lottery tickets and ATM disbursements), Balance Transfers, and fees,
transactions to fund certain prepaid card products, U.S. Mint purchases, or transactions to purchase cash convertible items