I have had conflicting statements about postage costs.  Several Customer Services Officers have told me that the GST will apply to everything - a simple 10% tacked onto the total of your monthly invoice.  The last comment stated "All fees (including FVF) will be charged GST. The Shipping & Postage charges will not be charged GST. Please note difference between postage charges & eBay fees. Shipping is not an eBay fee so is not charged GST."

So who knows!!