If you bought TurboTax at a retailer (Costco, Walmart, Staples, etc…), please make sure that you are using the code that came in the package. It may be on a slip of paper or on a scratch-off card. It is not on the outside of the box or on your receipt.
If you are still not able to resolve your code issue, please contact our phone support team at 1-888-829-8608