Wireless Home Phone will not accept SMS for 6 digit code

Do you have a Koodo cell line on the same account as well? The 2FA number selection only shows active Koodo numbers, so if you do, pick the cell number as your 2FA number instead of the home phone.

If you already set up 2FA, on the code screen select "Verify another way" and enter one of the 6 backup codes you got at setup (check your Downloads folder if you saved the PDF). Once you're in you can change the number under My profile » Two factor authentication » Manage https://www.koodomobile.com/en/help/two-factor-authentication

If it's a home phone only account and you don't have backup codes, Koodo's help page says to connect with a rep through Koodo Assist so they can set up 2FA securely for you https://www.koodomobile.com/en/help?autobots=rollout