Hello i'm a little confused about some of the finer points with changing your telecom broadband plan. 


So i'm currently on Total home Pro (120gb) - $145, 15 days into my billing cycle. I'm about to go over my data cap and don't want to be stuck paying $2 a GB for another few weeks because i'm such a heavy internet user at the moment.

So i'm think of changing my plan to 150GB everyday national calling - $123. Can someone explain to me what happens when i change plans? Is my Data cap reset? Also how am i billed?.

For what I understand someone told me ill be billed at a per day rate for usage of both plans, For example.

145/31 = 4.677 - Per day
123/31 = 3.967 - Per day

4.677 * 15 = 70.155
3.967 * 16 = 63.472

70.155 + 63.472 = $133.6 Total for the month

Is this correct?