Go to local phone shop and ask about telus and rogers new plans.If you are satisfied with telus plan means stay with Telus.
No means,swap you carrier from Telus to Rogers.For swapping your network carrier,Make sure your iphone is free from network lock.If it's locked means,you will need to unlock your phone.For unlocking visit TheUnlockSpot.com Here you can unlock your iphone by Remote unlocking method without jailbreaking.