Hello,
Sorry to hear you are having issues. First need to clarify something, you purchased Fences via Steam or direct from Stardock?

Thank you.
Basj,
Stardock Community Assistant.

Hello,

To change your email address, please refer to this guide: https://stardock.atlassian.net/servicedesk/customer/portal/4/topic/04036a95-5f64-4b34-82a5-11fbe003b80c/article/1260585015

If those steps don't work for you, please raise support ticket using the link below, use the "Account Mergers/Email Change" 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/14

Thanks
Basj,
Stardock Community Assistant

Yes, you should able to, just follow the steps I mentioned above.

Thank you,

Basj,
Stardock Community Assistant