I have done taxes using the free way historically, on TurboTax. This year, I again opted for 'no charge' option, went though, and at the very end had to pay $10

I have done taxes using the free way historically, on TurboTax. This year, I again opted for 'no charge' option, went though, and at the very end had to pay $104.00 without any explanation. I tried going back but I couldn't find if I had mistakingly selected something because they throw in payed options as you go. But I couldn't find or change anything, so decided to file instead of doing taxes the old fashioned paper way. I still have a bitter feeling, like I got scammed. I talked to a few friends and they had similar experiences, especially their older parents ending up paying more then a hundred dollars. I really hope IRS filing will happen, but with the amount of money they are skimming off poor folks and insider lobbying, I can't imagine it will.