After a complete reinstallation of my desktop PC with new hardware, reinstallation of LR6, I want now to install my LR6 perpetual license on my laptop but the max number of users is reached.

I have the same issue and annoyance with not having phone support for my product.  I have cs4 and my old computer died an abrupt death so I replaced it but now can't install on my new computer since the old one is still "activated" as well as an old old computer that died many years ago.  So $3k in software and I can't install it and when I try to do what it prompts me to do - call or chat to have the old computers deactivated by adobe - when I do try to get the phone number to call to do so, it says I don't have phone support.  I had a similar issue when I first bought the software and this is giving me flashbacks to that experience... paid a crap-load of money for software but can't get anyone to provide meaningful help in downloading it.

John T Smith-CHAT is NOT working.  I can't get anyone to deactivate me and believe me I have tried.  god, this is frustrating.

You are supposed to deactivate from inside the program before you replace hardware

Since you didn't, or your computer died and you couldn't, you need to contact Adobe to reset your activation count

Chat/Phone: Mon - Fri  5am - 7pm  (US Pacific Time) <=== NOTE DAYS AND TIME

Be sure to remain signed in with your Adobe ID before accessing the link below

Serial number and activation support (non-CC)

http://helpx.adobe.com/x-productkb/global/service1.html