Your post got stuck in the moderation queue while I was on holiday.
The regulations on Child Benefit are often misapplied, I'm afraid. If you take a look at this post
and links from one of our child benefit threads, it should help explain the position.
We have found asking MPs to intervene is an effective way of getting your eligibility confirmed and payments restored where they have been wrongly suspended. No mater how many representations home educators have made to the CB office, nothing has ever been done to resolve their ongoing failure to apply the rules properly.