Better off putting up for more. At that kind of price you just attract twats. £20 and then you can let them haggle down and think they have a win.
I’ve tried that as well. No interest.
TBH I have sold some items and got the price I wanted, but not many items.
Ebay is much better as buyers are nationwide as along as you are prepared to post the item. Buyers also get caught up in a bidding war if two or people want the item.