I found the promotion this weekend when I shopped on Kmart. It starts 01/03/2010. Terms and Conditions as below:
"Cashback Offer is valid on retail purchases made between 01 March, 2010 and 03 May, 2010. Claims must be received by 10.05.10. Claims will be limited to the first 8000 received from Australia and New Zealand. See www.unilever.com.au/brands/promotions/dove.
The link redirects to the main Unilever site for me. This one goes direct to the promotion
http://www.unilever.com.au/brands/Promotions/DoveBodyLotion_…