Medical Insurance Audit

My husband's employer is doing an audit on the dependents under the medical insurance plan.  Employers have to prove that the dependents on the plan are actually dependents with birth certificates, tax forms, court orders, and a marriage license.  It's been a little bit of a pain.

We have everybody in the family verified except for my stepkids.  We've given them copies of their birth certificates and a copy of the court order that indicates my husband has to provide medical insurance for them but it's not been approved yet.  The ex has always claimed them on her taxes so they aren't on our 1040 tax form.  That would've approved them immediately if they had. 

If they don't approve it, the stepkids get dropped from the insurance effective January 1, 2010.  That would NOT be cool. I've been calling them every few days to see about them getting approved but I am beginning to wonder if I should be looking at free insurance quotes. If they drop the stepkids, we would have to get the court involved, the ex would start up again (and we prefer the quiet of not having to deal with her), and we'd have medical bills to pay if they backed out of the claims this year so far. They keep telling me it "should" be approved - so why haven't they marked it approved yet?