so does this mean that if I sell something with for $20 + $10 postage = $30, I pay the TM fee which includes the GST on the $10 postage as well as the GST on the $20 sale fee. I then book a Courier for $10 which includes the GST on that so I am really paying two lots of GST on the postage
what part of the fee is GST? Does GST get paid on the postage charge. Then when I book a Courier through TM do I get charged GST on that as well