I am experiencing what I believe is an hugely overcharged invoice by AGL. AGL, without notification, reversed my past paid invoice (Oct - Jan 2023) and due on May 18 invocie (Jan-Apr 2023) two days before due date on May 16, They then issued a completely new invoice on May 25 for the whole period of Oct to Apr 2023 (AGL even removed the Oct to Jan invoice record) and based on estimated usage, I now owe them $730 for Oct to Jan period, and Jan to Apri amount has doubled to $800. My total due amo ...