I have 9 years using turbo tax, when I open my account it wants to sell me turbo tax I have already purchased, where do I put my code?

If you purchased a CD/Download product, you can access that here:

Use this link to access the website.   Click on Access my downloads.   Enter the same login credentials you used when you purchased the CD.

https://turbotax.intuit.com/personal-taxes/cd-download/