Join Bunch by registering your interest on the link on the website.
Once approved you enter in your onecard details and from time to time you are emailed a free sample to try.
This is done by adding and claiming the free sample to your linked onecard, then going into the store, collecting the item and swiping your nominated onecard which zeros out the price.
Once you have tried the item you review it on the bunch website and await the next free sample approx 1 per month.
Friends and family have received a wide range of free Samples including bags of potatoes, brie, pizzas, blueberries etc
This is a long running deal with nil obvious expiry date.
From registering interest to becoming a member took about 2 weeks.