Yes, Fences 2 not compatible on Windows 10 or 11. Not sure how you manage to use it on your Windows 10 before. However, I am more interested on your activation issue. Have you tried my "review and manage activation steps" I posted above? What error did you get while trying to activate it?
If you are asking for invoice, I can not provide it, but, please raise support ticket using the link below, use "Ask a Question" option. Include all information details. Remember to record down the ticket number for future reference if needed. Do not raise multiple ticket, that will make your ticket back to the end of the line. Send once and wait. Ticket will be answer by the order they send in.
https://stardock.atlassian.net/servicedesk/customer/portal/4/group/13
Thank you,
Basj,
Stardock Community Assistant