Where did you get the phone? Was there any link to the specification of the phone?

From gsmarena link https://www.gsmarena.com/nokia_2720_flip-9836.php the phone wasn’t fully compatible with Koodo.

You can find more information here  https://www.koodomobile.com/en/help/my-phone-compatible-koodo

I haven’t bought the phone yet. It looks like the kind of phone that I want… but I didn’t want to buy it and then find out it wouldn’t work on the koodo network. Thank you for letting me know that it will not work.