applied early june (when opened) (though landlord finally getting involved now)
now the portal shows whatever arrears info I entered up until then. Jul-Aug, showing $0 Monthly Rent $0 Past due
They'll tell you that any updates will most likely slow down processing.
If you already owe 12 months of arrears without it there's no point in updating. If you don't receive the full 12+3 when approved you can apply again until you receive the maximum (assuming you meet the rules again).
Note that they don't update the status on top. The only way to know if it was paid is in the status chart.
Payment Processing Status will say "Sent" and Payment Status will say "Cleared".