How will i be charged for my RoamForce usage?

RoamForce is a post-paid service and uses the credit card supplied when you purchased your SIM card to bill you monthly for any usage you incur. If you don't use the SIM card, your bill is $0. We bill at the beginning of each month for the previous month's usage, or in $100 increments (i.e if you run up a bill of $101 two weeks into a month, we will charge your card $100). At the end of each month, the total amount you are billed is the same however.