I am looking for a refund of the service fees I paid to TurboTax because I am not happy with the service. How do I get my money back and how long does it take?

You will need to discuss your issue with customer support.  We cannot issue refunds from the user forum.  Use the word "billing" in your request for help--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