I agree also - not happy with no bank transfers and yet TM is allowing cash sales - so a stranger comes to your door, they could be violent, but that is OK apparently.  On Facebook market place there are warnings about cash sales.  Also cash sales - hate them, a buyer says they will pick a sale up on, for example, 2pm Sunday on a specific date, they arrive at 2pm two weeks later or at 9pm that night and are surprised that you are not that friendly, or they never arrive at all.

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