incorrect serial number

You need to contact Adobe Support either by chat or via phone when you have serial number and activation issues.

Here are some links to help make contact:

http://www.adobe.com/support/chat/ivrchat.html

http://www.adobe.com/support/download-install/supportinfo/

You can also try looking thru the foillowing help documents:

Error "The serial number is not valid for this product" | Creative Suite
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http://helpx.adobe.com/creative-suite/kb/error-serial-number-valid-product.html

My serial number doesn't work 

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http://helpx.adobe.com/x-productkb/global/my-serial-number-doesnt-work.html