Seriously jadora, I cant believe you have over 2000 feedbacks and you are confused by this!

Click and Send price to post 500grams is $6.95. Yes you do have to buy your satchels, they cost .15c and you buy them from Australia Post on Ebay. They post them to you for free. You also get a bar code when you print your label which the post office scans and the buyer is notified by email that the package has been scanned in. Its a win/win. You have proof of every postage transaction in case the buyer claims they havent received it, this stays on the order details page on Ebay,  you print your own labels and take them to the post office and hand them over. OR you could pay whatever it costs for a 500gram pre paid satchel...which is a bit more than $6.95 and get no record of postage.... I know which way I would prefer!!

Some men see things as they are and say why, I dream things that never were and say... why not?      -  RFK