you should refer back to the offer describing the services as -lrb- i -rrb- you may not receive a refund at the time of cancellation ; -lrb- ii -rrb- you may be obligated to pay cancellation charges ; -lrb- iii -rrb- you may be obligated to pay all charges made to your billing account for the services before the date of cancellation ; or -lrb- iv -rrb- you may lose access to and use of your account when you cancel the services .