If your credit card deposit gets declined, first you’ll want to contact the sportsbook’s customer service line to ensure it’s not an issue with the operator. The operator will likely confirm that your bank is declining the deposit. After contacting customer service, you may want to choose a different deposit method with a higher chance of approval, like PayPal or bank transfer. If you don’t want to use a different method, the last option is to contact your bank to see why they are blocking the transaction.