Visit your profile by tapping the single person icon at the bottom of your game >> tap the Profile tab.
Once in the Profile tab >> tap the gear icon located at the upper right of your profile.

Under 'Email': Your linked email will appear as linked.

Please note: You may tap on EDIT if you wish to change your linked email to a different email. To complete the changing process, please check your emails spam/junk folders for an email from Covet Fashion to verify your device. Tap on "Validate" to complete the verification process.