Extra data not used, disappears.
I"ve recently broke down and let my youngest child of 16 get a new smart phone. Promising she would not go over the limit of data usage. Yea I know. Most of the times she does really good. But I have noticed that when she does go over the limit we recieve notices and we get charged $10.00 for another GB. I understand that. This usually happens right at the end of the billing cycle and all of the extra DATA has not been used. I would like to assume that since it has been payed for, all of the unused extra DATA would be carried over to the following month. Only the extra DATA.