My husband and his ex only have a divorce decree that stated the amount of child support he owes monthly for their 2 children. this has worked for 8 yrs. The ex has been constantly nagging for more money, we now get a notice from VA division of child support that she has opened a case. How does the dcse figure the child support amount? We have received no notice asking for W2 or custody schedule or insurance premiums. Only a notice to stop making payments directly to her and send payments to the state. I'm assuming a modification request is coming next?