Hi Rod
Have a bit of a problem with my install of the AustPost module. It has been installed now for over three years and has been terrific. However, we recently found a problem with customers from the UK ordering via the shop. The shipping module comes up with the message "AusPOST International Parcel Post - AIR (ERROR: The delivery rate for this option cannot be determined at this time. If you prefer to use this option as your shipping method, please contact the store owner.)"
If I don't log in and get an estimate on shipping for the UK, it works perfectly. The problem only occurs when you are logged in.
I have gone through absolutely everything I can think of, and compared my UK country set up with others that work perfectly fine (recently US, Singapore, Spain, France, New Zealand).
Our ZenCart version is 1.2.4 and the AustPost version is 2.0.2.
Thanks and regards