We don't work for Turbo Tax. We are just other users like you. We volunteer here.
100% Calculation Guarantee
https://ttlc.intuit.com/community/charges-and-fees/help/what-is-the-turbotax-100-accurate-calculatio...
How to submit a claim under the 100% Accuracy Guarantee
https://ttlc.intuit.com/questions/1901269-how-do-i-submit-a-claim-under-the-turbotax-100-accurate-ca...
