Why am I being charged $34.99, on top of the $29.99 fee I was quoted when I started my returns? Does it not apply if I change my pmt method to a credit card? If so, how?

I was quoted $29.99, but when I file I'm now being charged an addl. $34.99.  Why is this?  If it has to do w/my payment method, how do I change that?