+1 on form drama…
Suggestion: When an address is required in a form, start with the broadest required range first.
e.g. Don’t ask the user to enter address, suburb, state, post code and then country. Start with country, post code (This will typically allow the user to skip state and possibly suburb when using a smart form) and then filter address as the user types the street name.
Just because we read addresses in the former order doesn’t mean we should enter them in the same order.