just searching wickes and the 15% off and this came up, thought it might be useful :)
I assume it would work on top of the 15%?
Here's how to redeem this offer...
Join Quidco, for free
We'll direct you to Wickes where you'll need to make a purchase of £10+
Within 3 weeks of purchase, we will add a £20 cashback bonus to your new Quidco account
Please note: you may see a lower amount track into your Quidco account before uplifting to £20 by the 30th April 2017