This service is a scam and it proof that corporate America is exploiting the poor 99% of Americans.
There is a $40 service charge from the third party processor to have the TurboTax account fees paid from the federal tax refund.
See this TurboTax support FAQ for how to remove the Pay with Refund option - https://ttlc.intuit.com/turbotax-support/en-us/help-article/intuit-account-billing/remove-pay-refund-fees-turbotax-online-change/L7UxC6ZZp_US_en_US?uid=m9fu3uqa