This is some type of illegal activity. They constantly call using different numbers saying that they have some legal action against you. This is a scam. They will also somehow get numbers of relatives and harass them as well. They give phony case numbers and say that they have legal actions pending against you. I have contacted our county prosecutor (a member of my Dad's church) regarding this and they also believe it is a scam and have assured me that no legal action can or will be filed against me.