Both issues seem like Timing factors.
a) Today (4 January) I went to the Export to a CSV file tab and this time my transactions of 30 December showed.
b) For test purposes I went into “Contact Us” on BNZ and this time (4 January) my message was sent as I had previously expected. My wording was as [per my submission to you on BNZ Community.
Perhaps both issues related to the fact that my original attempts were made during the Statutory Holiday period.