My client has purchased a license for me and it all works fine. After we're finished cooperation in few months I need to "return" the license to them.
Is there some kind of uninstall confirmation that I need to send them so that you will allow them to give this license to their own developer later?

Best regards

Hello Nikola,

In order to transfer the license, the license holder (You or your customer) will have to contact Nevron Sales directly.

Best Regards,
Nevron Support Team