For your benefit information, Click CUPE EWBT benefits guide
Don’t forget they have an App for that 
Go to your app store and download GroupNet
For enrolment, eligibility, life coverage & premiums questions contact
OTIP: 1-866-783-6847
For Health & Dental coverage & claims questions contact
Great West Life: 1-866-800-8050
Other updates from CUPE can be found on their website: www.cupe-ewbt.ca