Each bank that issues debit and credit cards holds its own policies on gambling. Some financial institutions, such as Bank of America, are staunchly opposed to online betting—even in Pennsylvania. You aren’t doing anything wrong when your PA betting deposits are declined—the issuing bank is merely enacting its policy. However, you should take steps to ensure that you don’t experience this problem again. You can either choose a different deposit method (e.g., e-wallet) or find a new bank.