Issues with license transfer

I switched from to a new computer and I followed the step by step process to transfer license. It does not work. I still get message that license is active elsewhere even though I logged out and uninstalled parallels on old machine. What can I do?

 

Hi, we've reset your license key, please check the issue and let us know the results.

 

I have the same problem, I cannot transfer my license to my new mac mini, keeps complaining another device is using it each time I try to activate on the new machine. thanks