Home>Banking>Promotions>Earn rewards with your credit card • You may choose to deposit through your credit card, check or cash.(Fund-in service is not applicable to Citibank MasterCard, Diners Club and Citibank Renminbi Credit Cardholders.) • Using your credit card to fund in your deposit, you can earn time deposit interest instantly AND enjoy interest free repayment period on your credit card. • Transaction is NOT regarded as cash advance when depositing from credit card. 5 Easy Steps to Open a Citibank Account Online with Credit Card