Found 12th Jan 2017
Found this offer on topcashback so thought it worth sharing as 40% off looks to be the best deal I've seen online. Looks like the offer expires in 3 days so guessing it's an exclusive for a short while - so be quick! Also when I went to the website a popup showed that they are giving 50% off your first order. I don't know if this cancels the cashback but still a bargain!