Follow below steps to change the email address associated with your Notezilla 's cloud account.
Go to https://www.notezilla.net/Settings/AccountSettings to change your email address
You will get email. You need to click on the link in that email to change the email address
Right click on Notezilla icon and choose Sync option.
Click on Account Settings and edit your email address
Do step 3 and 4 on all devices and PCs.