You're better off buying the non Samsung branded ones from Amazon. Get one that's rated 10W and you will be wirelessly fast charging at exactly the same rate as the Samsung one for under £20, and you can use any QC2.0 wall charger to power it.
I have both official Samsung ones, as well as third party ones. I'd personally just get the more compatible ones for less money and receive the same charging performance.
I have both official Samsung ones, as well as third party ones. I'd personally just get the more compatible ones for less money and receive the same charging performance.