J.W.
Silver fillings are ugly but they do last longer which is why some insurance companies only cover them. The white ones are considered cosmetic. A lot of times the insurance coverage depends on whether they are molars. Front teeth are usually covered for bonding.
If you claim went through consider yourself lucky but know they have a pretty long time to pull the money back so don't raise a stink about your husband. Most likely your dentist got caught and is on the straight and narrow now.