i own a Samsung galaxy ace 2. its not very good and i would like to upgrade. phone plans in canada are very expensive. my current plan is 3 years. if i buy a phone out right without a plan (htc one) and assuming the sim card fits will it work? my plan is only 30$ a month and to have an htc one you have to have at least a 50$ a month plan. will it know and start charging me extra or will everything work and continue with my current plan?