You can only use Mastercard or Visa to make a credit card deposit into your Tropicana NJ online casino account. Per Tropicana NJ’s live chat as of May 2021, they do not accept other credit cards like AMEX, Discover, or Capital One. Besides credit cards, you can deposit money into your Tropicana NJ online casino account using an ACH bank transfer, PayNearMe, prepaid Mastercard or Visa, and cash via Tropicana Casino & Resort in Atlantic City.