I was referred by my friend and I am new to canada and I (referee) did not transfer existing number from any provider but bought a new connection from FIDO on 1st May, however I later changed the phone number using fido online service.
Hey @Deepanshuarora !
Welcome to the Community.
To clarify, when a phone number is changed, the temporary number appears in the system as cancelled and this makes it impossible for the credit to be applied.
As explained here, if you change your number, you'll need to have the number updated in your Fido Refer A Friend profile to continue to be eligible for the rewards.
You can contact the Fido Refer A Friend Program support team to have your profile updated.
Hope this helps!