I cannot get BAC to work for a RD9 Hastings address.  I get error  The pick up or delivery address needs updating. Please check the address at www.nzpost.co.nz/tools/address-postcode-finder. Both sending and receiving addresses have been updated in accordance with previous posts, leaving out suburb (or not), checking postcodes, etc, but cannot do it.  How do I get past this, please?