Found 18th Sep 2017
This will be account specific as always, check via this link after signing in to see whether it's available to you. Not sure when the £1 Max Selling fee promo will return, or perhaps it won't because I used it quite a few times in the past, so will be listing some high value items.
Sell for £3 max!£3 max final value fee on up to 5 listings and no insertion fee. Learn More