Where did you get the $28/h figure? Since Elections Canada website list the poll worker pay:

Deputy returning officer - $20.01 / h

Information officer - $20.01 / h

Registration officer - $20.01 / h

Central poll officer - $26.46 / h

Source https://www.elections.ca/jrb/jrpol/index_e.html

There is no paywall. It does require you provide an email. Doesn’t have to be a real email, just email format.