Fastoche operates on the principal that the family is ultimately responsible for the account balance (i.e. if subsidy does not pay, the family would owe the remaining amount). For this reason, when you generate a statement there will be a prior balance that includes any remaining family portion, as well as outstanding amounts from subsidy.
In order to show an accurate picture, you will sometimes see a line item that is "Overdue Subsidy". This line shows subsidy from prior periods that we are still expecting to be paid out. If that payment isn't received the amount will eventually shift to the family portion.