Why do I have to pay $100 plus to file my return I haven’t used any help and when I started it said free

The link below identifies which forms are available with which product type. Review your order and be sure you did not add unwanted extras. You can remove those. 

TurboTax Forms Available by Product

You can use the link below to contact TurboTax Support.

What is the TurboTax phone number

CAUTION:
For your safety and security, do NOT phone any contact numbers displayed in this thread.

We can tell you how to reach official TurboTax Support during business hours if needed.

In the regular Turbo Tax Free Edition, information that you can enter is limited now.  Why do I have to upgrade from the Free Edition?
https://ttlc.intuit.com/community/upgrading/help/why-do-i-have-to-upgrade-from-free-edition/00/26379

To go back to the Free Edition you can try to clear and start over https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-clear-and-start-over-in-turbotax-online/00/26444

OR There is also The Turbo Tax Free File program which is free for federal and state.  And has more forms than the Federal Free Edition, like Schedules A, B, C , D, E, F, EIC, H, K-1, SE,  etc.

To qualify for the Free File website  you just need to meet one of these 3 things
AGI $36,000 or less
Active duty military with AGI of $69,000 or less
OR qualify for EIC (earned income credit.)

In order to use the Free File program, you have to start it at a special website. Click on the Orange button I Qualify, Let's get Started
https://freefile.intuit.com/