Hi @Stevegasser, estimated readings are provided to us by your gas distributor, and if, as an example, a customer is on monthly billing, then they will receive multiple estimates as the meter itself is only read by them every quarter. It's one of the big reasons why we let people enter reads on the AGL app, to help our customers with easy access to a tool to get the bills correct.
If you do need to contact us in future, rather than getting frustrated on the phone, feel free to reach out to our messaging teams at www.agl.com.au/contact-us so they can help you out instead!
Thanks,
Mark.