G'day Mike,

> Adjusting the default parcel dimensions in admin seems to have resolved the issue..

Glad you found that. That WAS going to be my suggestion (those satchels can be surprising small).

> Just another quick one tho..
> Can I remove the text in the Shipping estimator pop up box that displays the Amount:
> Dims: Boxes: etc..?

Yup. That is a zencart setting (not an AustPost setting). You'll find it under the configuration / shipping and packaging options

Cheers
Rod