My old macbook is broken, can not Deactivate MN3

My old computer is broken, in my new macbook, I can not active MN3, can you help me deactivate another 2 devices?

Hello, kyleting,
Welcome to the MarginNote Forum. Please send your license code to "service@marginnote.com" and we will solve the problem. It will be better if you could notify me after sending the email.
Regards,
Bryan