Get your taxes done using TurboTax

Please tell me how not to be charged for the Premium Service that I did NOT select.  I owe federal and want to pay from my checking.  For California, I e-file and must pay $25.  No complaint there.  But when I get to the last screen, it asks me how I want to pay for the Premium Service.   It asks me if I want to pay with the federal refund, which I won't have, or with a credit card.   I really appreciate if you could help.  Thanks.