Sorry you might need to upgrade your Mac. You are posting from OS 10.10.5. You need OS 10.11 or higher or you will have to use the Online web version.
https://ttlc.intuit.com/replies/3299949
You can get a refund. When you fill out the form use the word BILLING ISSUES instead of the word “refund.” Contact Customer Service 7 days a week 5AM-9PM Pacific time
https://support.turbotax.intuit.com/contact
