So I'm having the same issue as reported a while back here https://www.geekzone.co.nz/forums.asp?forumid=39&topicid=223532
However the answer from that thread didn't work for me. I had issues logging into ANZ and after getting them on the phone I had my 2FA removed. I'm still not getting the code when I try to re-add the number.
I'm receiving SMS messages from my contacts as normal.
Any ideas?