I do the same chezzy. I try and find the dimensions of items before I commit to purchasing them. I'd love to sell some larger, bulky items that are lightweight but the postage cost is ridiculous.

Ambridge, Aus Post have updated their website with new cubing info and diagrams, probably similar to what they sent out to the POs.

mmmm interesting

I use 'plain' BX1 boxes. Main reason I like using these is that they are lighter weight than the AP ones.

I have had no extra charges since I have been using them (6+months) touch wood...

I also use plain parcel bags for my ebay and click and send parcels. They are the same size OR smaller than the AP/ebay ones. Haven't had any issues with that to date.

I don't mind the new AP bags - white and fairly plain unlike the eBay ones.

Hell, I even still put on the DO NOT SAFE DROP stickers.... (for whatever it is worth).

Yeppers. l've been using the plain boxes for yonks too. Never been pulled up on them before. This was a first.

And yes, l still use the No Safe Drop stickers too since l have about 10 boxes full still to use.

For what its worth I would argue the point and contest any underpaid bill.  AP usually cave if you have the stamina.

Their terms and conditions are all over the place.