I have a "Pass Restaurant" Sodexo card from when I was working in France last year, which still has €167 credit.
The money can be used in any supermarket or restaurant in France, but is only valid until 1st Feb.
I'm offering for €60.
I'd just need to get the card to you (there's an app that you can install along with it also), so would be most practical for someone travelling to France from Sheffield shortly (maybe a long shot), but option also to post.
I'm posting on here before trying alternate channels, hopefully someone can benefit from it!