Adobe Phone Support Says Can't Activate My $632 CS on a Laptop

I purchased Adobe upgrade PS CS5 disks directly from Adobe.  Successfully installed on Windows PC already running Elements 9 puchased in Oct 2011 and Photshop (purchased 2003).

For my second allowed instal, I tried to install on my laptop that does not have disk drive.  So I downloaded the trial version of CS5 on the laptop and provided the product serial number to activate.  Got popup that said " Product Serial number is valid but product cannot be activated because it must be an upgrade to one of the following products."  The drop down menu listed only Elements products Element 4 thru Elements 8.  There was no option to indicate that I was upgrading to CS5 from Elements 9.

I believe this is an Adobe problem -- they have not updated their drop down menu to show products more recent that Elements 8. 

I phone Adobe telephone support and was told that it is not possible for me to activate my very expensive $600+  Adobe CS 5 software on my laptop.  Is that really true??

If Adobe telephone support is correct, I plan to return the software for a refund.  When I ordered it, the Adobe sales rep said I could install it on two computers -- he didn't mention that one of the computers could not be a laptop. 

Dr Nancy DuBro