What you do is first sign up using this link 🙂
http://www.topcashback.co.uk
Then you search for what it is you want to buy or who you want to buy from, i.e. chainreaction, merlin, wiggle etc, but also mobile phones, utility switching etc.
You get the kick back that all these companies pay for referals, the % varies (3% from Chainreaction, 2% from Tesco Wine) it sits in an account for you in Top Cash back and once it hits about £50 you can take it out, I’ve had two payouts totaling about £120 so far.
You can get quite big amounts when switching power and gas, telephone, Sky TV etc, very much worth doing it, I got £50 for switching from Npower to a cheaper fixed deal a week or two ago.