The TT online fees is for the use of the program to complete a return that can be filed even if you mail it in ... efiling successfully is not guarantee. Once paid there is no refunding of the online fees. If you now need to amend you can download the amendment program for free to use in the amendment process.
How to Amend
https://ttlc.intuit.com/community/amending/help/how-to-amend-change-or-correct-a-return-you-already-...
If you want to contest this you will need to talk to TT support :
To contact TurboTax customer service/support use their contact website during business hours. If the problem concerns any type of refund for fees, use the key words billing issues and do Not use the word Refund or you will get a phone number for tax refunds.
Submit your question/problem during business hours and then use the option for Call (a phone number will be provided for Call) to speak directly with a TurboTax agent –
https://support.turbotax.intuit.com/contact/
