Issuers often classify online gambling purchases as cash advances. Even if your card issuer doesn't strictly prohibit3️⃣ online gambling purchases, there's another concern that can make using your card risky. Some issuers will classify online gambling and3️⃣ similar cash-like  purchases as a cash advance.

Can you use credit cards to make deposits3️⃣ at online gambling sites so you can place bets? You can generally try, especially if your card is a Visa3️⃣ or Mastercard (and, to a lesser extent, American Express and Discover).