Was just thinking, the only thing to check when doing this is that you’re purchasing from Amazon. Some sellers on Amazon have their own return policies I think. So look for this on the product page: “Sold by: Amazon EU S.a.r.L.”
Oh, I've bought 5 pairs all from different sellers, but fulfilled by amazon! Presumably I can still flex the 14 day right to cancel and they'll all be returned to Amazon, not individual retailers?
Great, thanks!