The "law firm" you mention sounds like a collection law firm. If you missed a payment, they have the right to report that to the DMV. However, if you communicate with them, they will usually work with you before that happens. YOU have to be proactive when it comes to your listen. The DMV doesn't care about anybody and they tend to make up rules that suit them. As far as a "case", I'm not sure against who you mean, but if I were you, I would start explaining the situation with the DMV to see if there is anything they can do.