No one in the user forum can help with a billing issue. You have to contact customer support. Us e the word "billing" -- not "refund."
To call TurboTax customer support
https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number
They are available from 5 a.m. to 5 p.m. Pacific time Monday-Friday
TurboTax 2018 Minimum System Requirements
Mac
https://ttlc.intuit.com/questions/1899173-minimum-system-requirements-for-turbotax-mac-software
Windows
https://ttlc.intuit.com/questions/1901571-minimum-system-requirements-for-turbotax-windows-software
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
