I have been getting this more consistently lately from sellers, that blame auspost for tracking update delays saying it can take up to a few DAYS for the tracking number to be valid.

Which to my knowledge is bs. I have never had a problem with auspost ever updating a tracking number, usually within 12 hrs maxium.

Maybe sellers just say this just to cover their own asses for very slow postage.

I would prefer truth over lies any day of the week and probably have more respect for these sellers to say they haven't posted it yet but will on a certain day or within the next few days.

Lies lies and more lies