If I choose to pay with my refund will I be charged an extra 39.99

[VolvoGirl]

Yes if you are in California.  For other states it is 34.99.

How to find your fees…
Log in to your return
Click on My Account at the top, then on Tools
Click on My Fees
A window will pop up that shows the fees

And to have the fees deducted from your federal refund is an EXTRA 34.99 Refund Processing Fee (39.99 in California). Or you can pay with a credit card and avoid the extra charge.

https://ttlc.intuit.com/replies/3301994