So, there's a load of stuff I could easily get to £50 on Amazon with. Except, I'm having a hard time finding stuff that's actually "sold by" Amazon, rather than "fulfilled by", which doesn't then count for the £10 off £50.
Yes, I've googled it - the answers seem to refer to an option that's no longer available. And yes, I know I can go into every product and look manually, but there has to be a hidden search parameter?!