I understand. However if they do not have any assets, money, property, or are working then all you have is a paper Judgment. You can seek to enforce it by:
1) Sending in bailiffs
2) Charge on any property they own
3) Freeze money in bank account
4) Attachment to earnings
But given they are on benefits they are not likely to be working, have money or property.
What you could do is make them bankrupt and the Official Receiver will look to see if they have any assets. But the cost of that to you is £1000 and if they dont have any assets your debt and that £1000 is written off.
This means unless you know they have assets there is no point taking it further because it will only cost you money and there is no guarantee you would get any of it back
I am sorry if this is not the answer you want and certainly not the one I want to give you, but I have a duty to be honest
Can I clarify anything for you about this today please?