Unfortunately our tax experts can't call non-Canadian phone numbers, or use Whatsapp to make calls. If you know someone who does have a Canadian number and can do a group call or transfer to your New Zealand number, that might work.

This is not possible or helpful for me at all, can I hand off my documents with what I have entered or submitted already?
How am I supposed to get my overseas taxes done for the previous year, after I have left the country? 

In the last week I received a turbo tax call from an administrator/online person and she rang my New Zealand number absolutely no problem - why is it different now?