Disable Zip Code Autocomplete

We have constant problem with people saying the get message saying 'we don't ship to their location...' which seems to be when their address has been autocompleted.

Can anyone give me help in turning off autocomplete just for billing & shipping zip code fields please.

What addon do you use for autocomplete? Or you mean default browser functionality?

Browser default

- go to Administration -> Profile fields page

- go to Zipcode field details page

- add cm-autocomplete-off class to the "User-defined CSS class" field

- save and check the result

(!) Not tested