Dunning notices pulling in non delinquent transactions

We're running staged dunning notices, however we're noticing that non-delinquent transactions are appearing within them and we can't figure out why. The data model is configured to exclude them, is there somewhere else we should be looking?

Copy of the data model:

select distinct *

from

(SELECT idt.dunning_id dunning_id1,

ct.trx_number                       invoice_number,

hca.account_number                  accountnumber,

hcsa.location                       billto,

to_char((ar.due_date),'MM/DD/YYYY')           original_due_date,

(ar.amount_due_original)         original_amount_due,

(ar.amount_due_remaining)        amount_due_remaining,

ar.invoice_currency_code            currency,

nvl(ied.financial_charge,0)         finance_charges,

LOC2.location_id location_id,