A service code is a special code that applies a discount to the TurboTax Online fee. These codes are provided by our support specialists for specific, pre-determined reasons, and aren't considered online coupons or "groupons."
We don't issue service codes for third-party discounts from affiliates like USAA, because our affiliates have their own TurboTax-branded websites that automatically apply the discount. Learn how to get your discount.
Service codes are valid through October 17 and can be used only once. Returns will not accept multiple service codes.
You would have to talk to TurboTax Customer Service about the service code.
https://support.turbotax.intuit.com/contact/
