My school student account can't connect to WileyPLUS?

Hi there, I'm a student at Wilfrid Laurier University in Ontario, Canada, and when I tried to get into WileyPLUS through the schools learning interface (in this case, D2L/Brightspace), it wouldn't work. I bought the course textbook along with the WileyPLUS access code, and I'm just wondering how i can get these two accounts to connect.

Any help is much appreciated, thanks.