I've had the same issue. Buyers are getting abusive. I've had numerous customers over the last couple of weeks complaining about not getting parcels, or parcels getting damaged.

I've had things going from Sydney to Sydney taking over a week. Buyers don't seem to want to wait that extra couple of days to compensate for Australia Posts slow delivery speeds. They are demanding refunds.

Even when purchasing things myself, they are taking a long time to arrive, or they don't arrive at all.

Traceable items aren't being scanned in.

There are numerous people complaining about the same thing. Something has to give. Prices went up, level of service went down.