no...it shouldn't. it should charge you for what portion of the billing cycle that you had your previous plan and then charge you a prorated amount for the rest of the month at the rate of the new plan.
no...it shouldn't. it should charge you for what portion of the billing cycle that you had your previous plan and then charge you a prorated amount for the rest of the month at the rate of the new plan.
Yes, it's called prorating. Whatever you didn't use they credit back and charge you the full new plan. For future reference when you want to change the plan, ask the represenative to make it effective the next billing cycle. I work for att and this makes a huge difference on the bill when ou do it that way. Then you wont incur and additional charges what so ever.