Can't obtain serial number from Adobe Licensing Web site

I am lucky, I found serial number in Puchase History page.  Thank for advice.

I have correct AdobeID, letter from LWS. I can log in LWS but don't have any information about my product serial number. I can see "Your Adobe licensing order has been processed" but nothing about serial number. I have to change computer but can't deactivate and activate product without serial number. 

For the link below click the Still Need Help? option in the blue area at the bottom and choose the chat option...
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Serial number and activation chat support (non-CC)
https://helpx.adobe.com/contact.html?step=PHSP-PHXS_downloading-installing-setting-up_licensing-activation_stillNeedHelp