I got an email saying i can opt in for no final value fees for items i list from the 15th feb-19th Feb.
Seems to be invite only but it may work so have a try!
I was also offered the £10 voucher when selling an item so if im eligible for 2 offers im sure many others will be as well.
Valid from 15 February 2017 until 19 February 2017. Maximum fee per sold listing. Applies on up to 100
listings. No insertion fees apply. Private sellers only.