Just posted an ad on gumtree and saw this promo appear
During the Promotion Period, pay no Insertion Fees or Final Value Fees for an item you list and make available for purchase in a single category when you:
i) list an item not in an Excluded Category on Gumtree via www.gumtree.com.au (which must be a completed, legitimate listing);
ii) click the “Free Post to eBay” banner displayed on the Gumtree Listing Confirmation Page and click the “Confirm and import listing” button on ebay.com.au (“Click Through”); and
iii) list an item not in an Excluded Category on www.ebay.com.au and subsequently sell the eBay item within 30 days (“Qualifying Sale”) (the “Promotion Requirements”).
Limited to 5 Free Insertion and Final Value Fees per Qualifying Seller per Qualifying Sale per month during the Promotion Period.
That sucks.