Phone # Change
jamesm said:
Changing the phone number has nothing to do with the plan unless it is a regional plan. That is the only time i would think they would ask you to change your plan. (Only to suit your new calling area.)
Unfortunately not the case, in our billing system rateplans are market specific and a mobile number change to an area code outside the specified market(s) will prompt a rateplan change. Even with a nationwide plan.