All postage labels used through eBay must be used with their satchels or the range of B boxes from Aust Post.

All postage labels used through Aust Post's site must be used their satchels or B Boxes.

If you use your own box or package,you have to use the assessed postage option (which cubes everything except for the Under 500grms parcel).

Aust Post have new fangled machines that scan parcels as they go through the sorting centres on their way to delivery.

If you use a eBay / Aust post standard label with your own package, expect to get an underpaid mail notice the following month.

l speaketh from experience!

My parcel was a B2 box but a cleanskin. You can purchase B1,2 and 5 boxes that are the correct size, just not branded with Aust Post.

At Australia Post we are constantly striving to improve the efficiency of our operations and to make it as easy as possible for you to use our services. This is why we have partnered with eBay to provide you with the ability to purchase postage for your parcels online and at a lower cost than if your parcel was assessed and processed by our retail staff.

We have also recently introduced Dimension Weigh Scan (DWS) equipment that measures and records your parcel’s length, width, height and weight during processing for comparison to what is expected for the label.

As you have paid postage online, this equipment also enables our retail staff to simply provide you with an acceptance scan when you lodge parcels. Not having to perform a full compliance check of postage paid articles is an initiative to provide you with speedier counter service and reduce the time you and our other customers spend queuing for service.

The DWS equipment we use is certified as Legal for Trade by the National Measurement Institute (NMI) of Australia. With this equipment, errors in application of paid labels, such as those you purchase on eBay, will now be routinely detected during processing and underpaid mail invoices issued.

We will be assessing articles processed in a calendar month and invoicing for underpaid postage, plus an administration fee of $1.50 for each underpaid article, in the following month.

Our assessment:

In relation to your parcel our assessment is that you selected Parcel Post flat rate (standard packaging) label when you should be selecting Parcel Post Parcel (own packaging) label and declaring the dimensions and weight of your package.

With your parcel, reassessed charges are based on the dimensions rather than the physical weight. Please refer to our size and weight guidelines at http://auspost.com.au/parcels-mail/size-and-weight-guidelines.html for details of how cubic weight for domestic parcels is calculated.

In regard to using Australia Post flat rate postage labels with standard packaging available from the Australia Post eBay store please check the following link  http://stores.ebay.com.au/australiapoststore.