I can't work out how they come up with the estimates. This is how my last 4 tracked transactions look. I have a 5 day handling time.

Buyer in next town 55km away bought and paid Sunday night. I posted Monday, delivery estimate 21st to 23rd Dec. It arrived overnight.

Buyer in Hobart bought and paid Thurs 10th. I posted Friday 11th. Delivery estimate 21st to 29th Dec

Buyer in rural Vic bought and paid on Sat. I posted Monday. Delivery estimate 22nd to 30th Dec

Buyer in Hunter Valley NSW Bought Wed 9th, paid Sat 12th, posted today. Delivery estimate 22nd to 30th Dec.

I just wish they could deliver as quickly as what they have the last couple of weeks, all year round. 2 days to get something from rural NSW to Brisbane. The rural Vic one above looks like it will arrive tomorrow as it was at Sunshine West this morning (then again, it is Sunshine West!). Overnight to Sydney. 3 days to Adelaide. They're arriving before my handling time is even up! Sadly, it will stop once Christmas has been and gone.