Sorry---there is no other version for your older Mac. If your OS cannot be upgraded, then desktop software will not run on your Mac. You can use online software instead. Seek a refund for the download; you cannot pay for online TurboTax with the license code.
To request a refund for a TT product
https://ttlc.intuit.com/turbotax-support/en-us/help-article/intuit-refunds/request-refund-turbotax-p...
https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-...
ONLINE 2024
https://turbotax.intuit.com/personal-taxes/online/
**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.**