I just got a Xbox One Controller (New Style Bluetooth) for £29.99 on Amazon.
Amazon have something called "Amazon Household" where you can share a Prime Membership. I signed up this year as my wife kept seeing the recent items I had viewed that were possible Christmas presents.
It's free to add a second adult to your Prime Membership and they get the benefit of Prime Delivery, Prime Deals and most importantly Prime Now.
So I added my wife (who had a basic Amazon account) to my Household, then went in to Prime Now and used code "NOWFIVE" for £5 off your first order over £20.
Sure enough, it worked!
It might help a few people!