Event entry features

There have been changes in the automated emails sent to competitors in relation to payments. Can we turn these notifications off?
Competitors who have paid with direct deposit and not been marked as paid in the Portal, have received two payment reminders in the last 12 hours stating they have not paid.
We manage payments through an Excel sheet linked to our banking report, which is (mostly) automated and requires little effort on our part.
A preferred notification for payment outstanding would be to the Club, who can follow as required.
I ran an event two weeks ago and these emails were not sent and this look to be a recent change of notifications.
The Portal mostly works as required, and we're happy to use it, though I do not appreciate being forced to use a feature with no real justification for it, especially when the Portal still does not function as efficiently as it should.
Thank you,
Rhys Yeomans
0400519490