Sorry you can't apply the Desktop CD/Download program purchase to the Online version. They are separate prices and work different. You have to pay for online and try to get a refund for the Desktop program. Or switch to your program.
How to contact Turbo Tax
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-contact-turbotax/00/26991
What is the Turbo Tax phone number
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632
