I'm having the same problem, currently a Koodo customer with own phone. Iphone 6S shows online at $190 w/tab medium. went to kiosk @ Erin Mills, their system shows $290 w/tab medium so was told to go online and purchase. Added item to cart and logged into account, 6S is now $410 w/tab medium. I don't understand why, and spent several hours with CS trying to resolve the differences. awaiting a call back.