Hello @AnnunciationGOC ,
By default if an account has been set for NP status, then prepayment will be adjusted to reflect that. So the prepayment discounts for NPs would be 20% and 30% for 6 months and 12 months respectively.
If a prepayment was made before NP status was applied to the account (for example signing up, paying the full prepayment, then submitting paperwork for NP status), then future months' invoices would be discounted to reflect the account's status. This scenario would occur in a higher initial charge, but would ultimately lead to having a bigger pool of money than what would be used to keep the account open from month to month.