Check the currently documented partner offer
Radio-Canada’s Koodo help identifies eligible Canadian Internet or postpaid-mobile products and says the offer can change. Use the actual eligibility and offer shown by Koodo before changing an existing EXTRA subscription. The broadcaster also notes that partner-supplied EXTRA contains advertising. A change of billing route should therefore not be interpreted as preserving every feature of a differently sold subscription.
Handle the old subscription through its billing route
For this Koodo conversion, the current help says an existing directly billed EXTRA subscription is cancelled automatically. An Apple, Google Play or Roku subscription must instead be cancelled through that store to avoid double billing. The broader partner-conversion help gives the same store distinction. Do not assume that merely activating another benefit tells an independent app store to stop its own renewal.
Complete the Koodo activation sequence
The instructions recommend a computer. Select the offer through Koodo, finish its registration process and use Activez maintenant in the resulting activation email. That leads to ICI TOU.TV, where you sign in or create an account and select Activer mon abonnement. Receiving a confirmation from one stage is not the same as finishing the broadcaster’s activation screen.
Keep account validation and management in place
If a new Radio-Canada account is needed, the Koodo article requires its validation code before it becomes active. It also says ongoing account management is through Koodo and directs eligibility or already-used-offer errors there. Use that documented partner route for those specific issues.