How can i pay child support if i am unable to work ?:
Get a job.  Your ex has a child or children to support.  How do you expect them to do it and why should they carry your responsibility for it as well?  GET A JOB!

~  Spoken as the ex who is owed a lot of bucks and know how hard it is when a jerk doesn't pay what he owes.

Are you my ex?  If you are, they are looking for you.....

Best Wishes,

Sue