You can use this website to request a refund for the software purchase - https://turbotax.intuit.com/support/refund-request/index.jsp
If you are signed up for Advantage and no longer want the subscription then see this TurboTax support FAQ on how to cancel the Advantage subscription - https://ttlc.intuit.com/questions/1901052-how-do-i-cancel-my-turbotax-advantage-subscription
Use this website to check your orders and payments - http://turbotax.intuit.com/commerce/orderstatus/orderstatus.jsp
You will need to contact TurboTax support for any billing issues.
Use this website to contact TurboTax support - https://support.turbotax.intuit.com/contact/
Support can also be reached by messaging them on these pages https://www.facebook.com/turbotax/ and https://twitter.com/TeamTurboTax
Note - Support is open from 5am to 5pm Pacific time, Monday thru Friday
