How do i opt out of premium service benefits?

where is the premium service section?

Get your taxes done using TurboTax

Are you in California? If you want to have the fees deducted from your federal refund there is an EXTRA 40 Pay with Refund service charge (45 in California) or you can avoid the fee by paying upfront with a credit card.

 

If you are in California you need to remove the Premium Service first
https://ttlc.intuit.com/community/downgrading/help/how-do-i-remove-premium-services/00/26266