bought on line version - wanted downloadable version

You can probably do that, but you will need to speak with an agent in order to get the download sent to you.  

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What activation code do you have?  How did you get it?  There is not a code for the online version.

Did you buy the CD or buy the program online from somewhere else? The License Code is for both the CD and the download software.

I think you must have the 14 digit License Code for the Desktop program.  You can download it.  Try using this FAQ 

https://ttlc.intuit.com/community/installing/help/i-bought-the-cd-but-my-computer-doesn-t-have-a-cd-drive/01/26450