If your spouse or partner — your children’s other parent — works in your home country, you are entitled to child benefits there. If the amount of corresponding benefits in the country where you work is higher, the country where you work should pay a supplement corresponding to the difference between both benefits.
If your spouse or partner — your children’s other parent — does not work, you are entitled to child benefits in the country where you work.
NO — You cannot receive family benefits twice for the same period and for the same family member. There are "priority rules" in cases of overlapping entitlements.
If your double entitlement results from the fact that you work in one country and live in another, you will only receive benefits from the country where you work.
If you work in both countries, the country where you are insured will pay you family benefits.
YES — If your ex-husband doesn't use the family benefits he receives to maintain your children, the authority providing the benefits can decide to pay them directly to you, as the person who is actually maintaining the family.
If you want them to do so, contact the family benefits authorities of the country where your family members live. They will then contact the authorities responsible for paying the benefits in the other country.