Count what arrived
A verifier who doesn't work for the supplier records how much of each delivery arrived, even with no signal on site.
After a disaster, pay relief suppliers only for what really arrived.
Relief money moves fast, and that's when bills for missing or double-counted supplies get paid. Calm After the Storm ties every payment to a counted delivery and a real bank record.
Pay only for that
A bill is paid through the Capital One Nessie sandbox only for counted supplies, and the bank record is read back before it shows as paid.
Refuse the rest
A bill for more than arrived, or for the same delivery twice, is refused, with the reason on screen.