Parallels Support is really great...
I've a similar situation as GeorgeF1 but in my case I've installed Parallels Desktop 11 Pro on my iMac and mainly work with that.
From time to time I also used / use (Parallels Desktop 10 and older) on my MacBook Pro (pretty rarely), when I am / was on vacation or e.g. dog sitting
or any other situation were I am / was not at home and so have / had no access to my iMac. I never used it at the same time I used my iMac Parallels Desktop installation as this doesn't make sense for me.
I now got Parallels Desktop 11 Pro (had to as I used cloned VMs), activated it on my iMac first and then tried to activate it on my MacBook Pro but there it doesn't work anymore. As I said before, even if the EULA says something else, that activation process on both machines work for any older Parallels Desktop version.
I then created a ticket and hoped that I could find a solution with Parallels support but Parallels Support insists on it's EULA and it looks like Parallels Support doesn't even try to find a solution for a long term customer. Only answer I always get is, but the EULA says, but the EULA, but the EULA.....
Maybe Parallels should rethink the EULA and or at least the licensing part as I'm not the only one who wants to use it that way and is not willing to pay another 99.99$ per year to use a second installation when they don't have access to the primary one.
Am I angry? Yes I am as it looks like Parallels Support really doesn't care about long term customers and tries to find a solution for them.
I was really a fan of Parallels Desktop but first you force (in case I want to stay up to date) me to buy the Pro edition as else I'm unable to use my VM's anymore the way I did (cloning / templating) and then you're not trying to find a solution for my case and insist on your EULA, which I didn't even see before I got the activation problem. During the purchase process I saw the AGB of Cleverbridge but not the EULA of Parallels.
Then I searched the forums and find this thread, another user has a similar problem as I and the only thing you do is tell him to read the EULA.
I'm angry and will switch as I think that the only response will be that I should read the EULA and you won't try to make an exception or even read and try to understand my situation and why I'm not willing to pay additional 99.99$.